Beginner aquarium fish
A good first fish is hardy, tolerant of small mistakes and easy to feed. These profiles cover species rated beginner or easy, with the tank size and conditions each one needs.
430 species
Adolfo's cory
Corydoras adolfoi2.4 in (6 cm)20 gal (75 L)70–79°F (21–26°C)
Adorned Wrasse
Halichoeres cosmetus5.1 in (13 cm)50 gal (190 L)73–81°F (23–27°C)
African Banded Barb
Barbus fasciolatus2.4 in (6 cm)20 gal (75 L)68–79°F (20–26°C)
African butterfly cichlid
Anomalochromis thomasi3.1 in (8 cm)25 gal (95 L)73–81°F (23–27°C)
African Flameback Angelfish
Centropyge acanthops3.1 in (8 cm)29 gal (110 L)72–79°F (22–26°C)
African knifefish
Xenomystus nigri11.8 in (30 cm)53 gal (200 L)73–82°F (23–28°C)
African oneline tetra
Nannaethiops unitaeniatus2.6 in (6.5 cm)16 gal (60 L)72–79°F (22–26°C)
Allen's Damsel
Pomacentrus alleni2.4 in (6 cm)29 gal (110 L)75–81°F (24–27°C)
Alluaud's haplo
Astatoreochromis alluaudi7.5 in (19 cm)55 gal (210 L)73–82°F (23–28°C)Amazon molly
Poecilia formosa3.5 in (9 cm)20 gal (75 L)68–82°F (20–28°C)
American Flagfish
Jordanella floridae2.2 in (5.5 cm)18 gal (70 L)63–73°F (17–23°C)
Angelfish
Pterophyllum scalare5.9 in (15 cm)30 gal (115 L)75–86°F (24–30°C)
Arc-Eye Hawkfish
Paracirrhites arcatus7.9 in (20 cm)40 gal (150 L)72–79°F (22–26°C)
Azure Damsel
Chrysiptera hemicyanea2.8 in (7 cm)29 gal (110 L)75–81°F (24–27°C)Balunga Betta
Betta balunga2 in (5 cm)16 gal (60 L)72–81°F (22–27°C)
Banded acara
Bujurquina vittata4.7 in (12 cm)34 gal (130 L)68–82°F (20–28°C)
Banded rainbowfish
Melanotaenia trifasciata5.9 in (15 cm)50 gal (190 L)75–84°F (24–29°C)
Bandit cichlid
Guianacara geayi5.1 in (13 cm)40 gal (150 L)75–82°F (24–28°C)
Banggai Cardinalfish
Pterapogon kauderni3.1 in (8 cm)29 gal (110 L)73–82°F (23–28°C)
Banjo catfish
Bunocephalus coracoideus5.9 in (15 cm)25 gal (95 L)72–81°F (22–27°C)
Bar-tailed hoplo
Megalechis picta5.9 in (15 cm)53 gal (200 L)72–79°F (22–26°C)
Barberi Clownfish
Amphiprion barberi3.5 in (9 cm)30 gal (115 L)75–81°F (24–27°C)
Barred bichir
Polypterus delhezi13.8 in (35 cm)53 gal (200 L)75–86°F (24–30°C)Barred danio
Devario pathirana2.4 in (6 cm)24 gal (90 L)70–79°F (21–26°C)
Barred Rabbitfish
Siganus doliatus9.8 in (25 cm)106 gal (400 L)75–81°F (24–27°C)
Barred rainbowfish
Chilatherina fasciata4.7 in (12 cm)53 gal (200 L)75–86°F (24–30°C)
Betta
Betta splendens3 in (7.5 cm)7 gal (25 L)72–86°F (22–30°C)
Bicolor Anthias
Pseudanthias bicolor5.1 in (13 cm)125 gal (475 L)72–79°F (22–26°C)
Bicolor blenny
Ecsenius bicolor3.9 in (10 cm)29 gal (110 L)72–79°F (22–26°C)
Bicolor Dottyback
Pictichromis paccagnellae2.8 in (7 cm)29 gal (110 L)72–81°F (22–27°C)Bigspot barb
Barbodes dunckeri5.1 in (13 cm)53 gal (200 L)75–82°F (24–28°C)Black acara
Cichlasoma bimaculatum7.1 in (18 cm)40 gal (150 L)68–82°F (20–28°C)
Black band cory
Corydoras zygatus2.6 in (6.5 cm)21 gal (80 L)72–79°F (22–26°C)
Black molly
Poecilia sphenops4.7 in (12 cm)24 gal (90 L)70–82°F (21–28°C)
Black Neon Tetra
Hyphessobrycon herbertaxelrodi1.4 in (3.5 cm)16 gal (60 L)72–82°F (22–28°C)
Black paradise fish
Macropodus spechti3.1 in (8 cm)20 gal (75 L)68–82°F (20–28°C)
Black phantom tetra
Hyphessobrycon megalopterus1.4 in (3.6 cm)17 gal (65 L)70–82°F (21–28°C)
Black Pyramid Butterflyfish
Hemitaurichthys zoster7.1 in (18 cm)106 gal (400 L)75–81°F (24–27°C)
Black ruby barb
Pethia nigrofasciata2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Black widow tetra
Gymnocorymbus ternetzi2.4 in (6 cm)20 gal (75 L)68–79°F (20–26°C)
Black-banded rainbowfish
Melanotaenia nigrans3.9 in (10 cm)32 gal (120 L)72–82°F (22–28°C)
Blackbar soldierfish
Myripristis jacobus8.7 in (22 cm)79 gal (300 L)73–81°F (23–27°C)
Blackbelly limia
Limia melanogaster2.4 in (6 cm)16 gal (60 L)72–82°F (22–28°C)
Blackcap Basslet
Gramma melacara3.9 in (10 cm)29 gal (110 L)72–81°F (22–27°C)Blackfin goodea
Goodea atripinnis7.1 in (18 cm)53 gal (200 L)61–79°F (16–26°C)
Blackline Fang Blenny
Meiacanthus nigrolineatus3.5 in (9 cm)20 gal (75 L)75–81°F (24–27°C)
Bleeding heart tetra
Hyphessobrycon erythrostigma2.4 in (6 cm)20 gal (75 L)70–81°F (21–27°C)
Bleher's rainbowfish
Chilatherina bleheri4.7 in (12 cm)53 gal (200 L)73–81°F (23–27°C)
Blind cave tetra
Astyanax mexicanus4.7 in (12 cm)25 gal (95 L)70–77°F (21–25°C)
Blockhead Cichlid
Steatocranus casuarius4.7 in (12 cm)25 gal (95 L)75–82°F (24–28°C)
Blood Parrot Cichlid
A. citrinellus x V. synspilum7.9 in (20 cm)32 gal (120 L)72–82°F (22–28°C)
Bloodfin tetra
Aphyocharax anisitsi2.2 in (5.5 cm)20 gal (75 L)72–82°F (22–28°C)
Blue Assessor
Assessor macneilli2.8 in (7 cm)29 gal (110 L)72–79°F (22–26°C)
Blue Damsel
Chrysiptera cyanea3.1 in (8 cm)29 gal (110 L)75–81°F (24–27°C)
Blue danio
Danio kerri1.8 in (4.5 cm)11 gal (40 L)68–79°F (20–26°C)
Blue Gudgeon Dartfish
Ptereleotris heteroptera5.1 in (13 cm)29 gal (110 L)72–79°F (22–26°C)
Blue Hana Goby
Ptereleotris hanae4.7 in (12 cm)40 gal (150 L)73–81°F (23–27°C)
Blue panchax
Aplocheilus panchax3.5 in (9 cm)20 gal (75 L)72–82°F (22–28°C)
Blue Velvet Damsel
Neoglyphidodon oxyodon5.9 in (15 cm)55 gal (210 L)75–81°F (24–27°C)
Blue-Green Chromis
Chromis atripectoralis4.7 in (12 cm)30 gal (115 L)75–82°F (24–28°C)
Bluefin killifish
Lucania goodei2 in (5 cm)11 gal (40 L)64–77°F (18–25°C)
Bluefin Notho
Nothobranchius rachovii2.4 in (6 cm)21 gal (80 L)68–75°F (20–24°C)
Bluegill Sunfish
Lepomis macrochirus13.8 in (35 cm)70 gal (265 L)41–73°F (5–23°C)
Bluehead Wrasse
Thalassoma bifasciatum7.1 in (18 cm)74 gal (280 L)73–81°F (23–27°C)
Bluethroat Triggerfish
Xanthichthys auromarginatus9.1 in (23 cm)125 gal (473 L)72–79°F (22–26°C)
Brilliant rasbora
Rasbora einthovenii3.5 in (9 cm)20 gal (75 L)72–82°F (22–28°C)
Bronze cory
Corydoras aeneus3 in (7.5 cm)20 gal (75 L)70–81°F (21–27°C)
Brown spiketail paradisefish
Pseudosphromenus dayi2.6 in (6.5 cm)12 gal (45 L)68–82°F (20–28°C)
Buenos Aires tetra
Hyphessobrycon anisitsi3 in (7.5 cm)25 gal (95 L)66–81°F (19–27°C)
Burmese Badis
Badis ruber2 in (5 cm)20 gal (75 L)64–77°F (18–25°C)
Burton's mouthbrooder
Astatotilapia burtoni5.1 in (13 cm)53 gal (200 L)75–82°F (24–28°C)
Butterfly goodeid
Ameca splendens4.7 in (12 cm)24 gal (90 L)68–82°F (20–28°C)
Cardinal tetra
Paracheirodon axelrodi1.8 in (4.5 cm)16 gal (60 L)73–84°F (23–29°C)
Cardinal toothcarp
Brachyrhaphis roseni2.4 in (6 cm)16 gal (60 L)72–86°F (22–30°C)
Carpenter's flasher wrasse
Paracheilinus carpenteri3.1 in (8 cm)53 gal (200 L)73–81°F (23–27°C)
Cauca molly
Poecilia caucana2.4 in (6 cm)16 gal (60 L)77–86°F (25–30°C)
Caudopunctatus
Neolamprologus caudopunctatus2.8 in (7 cm)20 gal (75 L)75–79°F (24–26°C)
Celestial Pearl danio
Danio margaritatus0.8 in (2 cm)9 gal (35 L)72–79°F (22–26°C)
Chalk Bass
Serranus tortugarum3.1 in (8 cm)29 gal (110 L)72–81°F (22–27°C)
Chanchito
Australoheros facetus8.7 in (22 cm)53 gal (200 L)59–79°F (15–26°C)
Checkered Barb
Oliotius oligolepis1.8 in (4.5 cm)16 gal (60 L)68–79°F (20–26°C)
Cherry barb
Puntius titteya2 in (5 cm)20 gal (75 L)72–81°F (22–27°C)
Cherub Angelfish
Centropyge argi2.8 in (7 cm)29 gal (110 L)72–82°F (22–28°C)
Christmas Wrasse
Halichoeres ornatissimus5.9 in (15 cm)70 gal (265 L)72–79°F (22–26°C)
Cinnamon Clownfish
Amphiprion melanopus4.7 in (12 cm)30 gal (115 L)75–82°F (24–28°C)
Citron Clown Goby
Gobiodon citrinus2.6 in (6.5 cm)11 gal (40 L)72–81°F (22–27°C)
Clark's Clownfish
Amphiprion clarkii5.5 in (14 cm)30 gal (115 L)75–82°F (24–28°C)
Clown Barb
Barbodes everetti4.7 in (12 cm)40 gal (150 L)64–82°F (18–28°C)
Clown pleco
Panaqolus maccus3.5 in (9 cm)20 gal (75 L)73–82°F (23–28°C)
Cochu's blue tetra
Boehlkea fredcochui2.2 in (5.5 cm)20 gal (75 L)72–82°F (22–28°C)
Colombian Tetra
Hyphessobrycon columbianus2.6 in (6.5 cm)20 gal (75 L)73–82°F (23–28°C)
Comet
Carassius auratus11.8 in (30 cm)50 gal (190 L)39–75°F (4–24°C)
Common goldfish
Carassius auratus7.9 in (20 cm)24 gal (90 L)39–82°F (4–28°C)
Common pleco
Hypostomus plecostomus15.7 in (40 cm)85 gal (320 L)72–86°F (22–30°C)Common syno
Synodontis nigrita7.9 in (20 cm)55 gal (210 L)70–82°F (21–28°C)
Common woodcat
Trachelyopterus galeatus8.7 in (22 cm)50 gal (190 L)72–82°F (22–28°C)Concolor cory
Corydoras concolor2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Congo tetra
Phenacogrammus interruptus3.1 in (8 cm)24 gal (90 L)73–82°F (23–28°C)
Convict Cichlid
Amatitlania nigrofasciata5.9 in (15 cm)25 gal (95 L)75–82°F (24–28°C)
Convict julie
Julidochromis regani5.1 in (13 cm)29 gal (110 L)75–81°F (24–27°C)
Coral Beauty Angelfish
Centropyge bispinosa3.9 in (10 cm)50 gal (190 L)72–79°F (22–26°C)
Croaking gourami
Trichopsis vittata2.8 in (7 cm)25 gal (95 L)72–82°F (22–28°C)
Crucian carp
Carassius carassius11.8 in (30 cm)119 gal (450 L)39–75°F (4–24°C)Cuming's barb
Pethia cumingii2 in (5 cm)16 gal (60 L)72–81°F (22–27°C)
Daffodil cichlid
Neolamprologus pulcher5.1 in (13 cm)29 gal (110 L)75–81°F (24–27°C)
Dalmatian molly
Poecilia latipinna4.7 in (12 cm)24 gal (90 L)70–79°F (21–26°C)
Deepwater hap
Placidochromis electra7.1 in (18 cm)66 gal (250 L)75–81°F (24–27°C)
Desert goby
Chlamydogobius eremius2.4 in (6 cm)16 gal (60 L)64–82°F (18–28°C)
Diadem Dottyback
Pseudochromis diadema2.8 in (7 cm)20 gal (75 L)73–81°F (23–27°C)
Diamond tetra
Moenkhausia pittieri2.4 in (6 cm)20 gal (75 L)75–82°F (24–28°C)
Disco Blenny
Meiacanthus smithi3.1 in (8 cm)26 gal (100 L)73–81°F (23–27°C)
Domino Damsel
Dascyllus trimaculatus5.5 in (14 cm)55 gal (210 L)75–81°F (24–27°C)Dwarf barb
Pethia phutunio1.4 in (3.5 cm)12 gal (45 L)72–79°F (22–26°C)
Dwarf cory
Corydoras hastatus1.3 in (3.2 cm)12 gal (45 L)68–79°F (20–26°C)
Dwarf flag cichlid
Laetacara curviceps2.2 in (5.5 cm)20 gal (75 L)68–82°F (20–28°C)Dwarf hoplo
Lepthoplosternum pectorale2.6 in (6.5 cm)24 gal (90 L)68–75°F (20–24°C)
Dwarf livebearer
Neoheterandria elegans1 in (2.5 cm)5 gal (20 L)75–82°F (24–28°C)Dwarf petricola
Synodontis lucipinnis3.9 in (10 cm)30 gal (114 L)73–81°F (23–27°C)
Dwarf rainbowfish
Melanotaenia maccullochi2.8 in (7 cm)20 gal (75 L)72–82°F (22–28°C)
Eastern mosquitofish
Gambusia holbrooki3.1 in (8 cm)11 gal (40 L)59–84°F (15–29°C)
Edith's betta
Betta edithae2.4 in (6 cm)20 gal (75 L)72–81°F (22–27°C)Eel kuhli loach
Pangio anguillaris4.7 in (12 cm)20 gal (75 L)72–82°F (22–28°C)
Egyptian mouthbrooder
Pseudocrenilabrus multicolor3.1 in (8 cm)20 gal (75 L)72–79°F (22–26°C)Ehrhardt's cory
Corydoras ehrhardti2 in (5 cm)16 gal (60 L)66–77°F (19–25°C)
Electric yellow cichlid
Labidochromis caeruleus4.7 in (12 cm)42 gal (160 L)75–82°F (24–28°C)
Elegant cory
Corydoras elegans2.1 in (5.4 cm)16 gal (60 L)68–79°F (20–26°C)
Ellioti cichlid
Thorichthys maculipinnis5.9 in (15 cm)53 gal (200 L)75–82°F (24–28°C)
Ember tetra
Hyphessobrycon amandae0.8 in (2 cm)9 gal (35 L)72–82°F (22–28°C)
Emerald betta
Betta smaragdina2.4 in (6 cm)11 gal (40 L)72–82°F (22–28°C)
Emperor tetra
Nematobrycon palmeri2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Endler's livebearer
Poecilia wingei1.6 in (4 cm)5 gal (20 L)72–86°F (22–30°C)
Espei rasbora
Trigonostigma espei1.5 in (3.8 cm)11 gal (40 L)73–82°F (23–28°C)
Exclamation-point rasbora
Boraras urophthalmoides0.6 in (1.6 cm)11 gal (40 L)73–81°F (23–27°C)
Exquisite Fairy Wrasse
Cirrhilabrus exquisitus4.7 in (12 cm)90 gal (340 L)72–79°F (22–26°C)
Eyespot rasbora
Brevibora dorsiocellata1.4 in (3.5 cm)9 gal (35 L)68–77°F (20–25°C)
Fairy cory
Corydoras atropersonatus2 in (5 cm)16 gal (60 L)70–81°F (21–27°C)
Falco Hawkfish
Cirrhitichthys falco2.8 in (7 cm)29 gal (110 L)72–79°F (22–26°C)
False bandit cory
Corydoras melini2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)Fanning characin
Pyrrhulina rachoviana2 in (5 cm)16 gal (60 L)68–79°F (20–26°C)
Fantail
Carassius auratus7.1 in (18 cm)20 gal (75 L)59–73°F (15–23°C)
Fathead minnow
Pimephales promelas3 in (7.5 cm)20 gal (75 L)50–72°F (10–22°C)
Fiji Blue Devil Damsel
Chrysiptera taupou3.1 in (8 cm)29 gal (110 L)75–81°F (24–27°C)
Filament Barb
Dawkinsia filamentosa5.1 in (13 cm)53 gal (200 L)68–77°F (20–25°C)
Firefish
Nemateleotris magnifica3.5 in (9 cm)20 gal (75 L)72–81°F (22–27°C)
Firemouth cichlid
Thorichthys meeki5.9 in (15 cm)30 gal (115 L)73–82°F (23–28°C)
Fisher's Angelfish
Centropyge fisheri2.8 in (7 cm)53 gal (200 L)75–81°F (24–27°C)
Five-banded barb
Desmopuntius pentazona2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Flag cichlid
Mesonauta festivus5.9 in (15 cm)37 gal (140 L)75–82°F (24–28°C)
Flame Fairy Wrasse
Cirrhilabrus jordani3.9 in (10 cm)90 gal (340 L)72–79°F (22–26°C)
Flame Hawkfish
Neocirrhites armatus3.5 in (9 cm)29 gal (110 L)72–79°F (22–26°C)
Flame tetra
Hyphessobrycon flammeus1 in (2.5 cm)10 gal (38 L)68–79°F (20–26°C)
Flowerhorn cichlid
Amphilophus hybrid15.7 in (40 cm)90 gal (340 L)77–88°F (25–31°C)
Forktail Fang Blenny
Meiacanthus atrodorsalis4.3 in (11 cm)30 gal (114 L)72–79°F (22–26°C)
Four-Stripe Damsel
Dascyllus melanurus3.1 in (8 cm)29 gal (110 L)75–81°F (24–27°C)
Fourline Wrasse
Pseudocheilinus tetrataenia3 in (7.5 cm)30 gal (114 L)72–79°F (22–26°C)Fourspotted toothcarp
Phallichthys quadripunctatus1.4 in (3.5 cm)11 gal (40 L)68–86°F (20–30°C)
Foxface Rabbitfish
Siganus vulpinus9.4 in (24 cm)75 gal (285 L)72–79°F (22–26°C)
Freckled Hawkfish
Paracirrhites forsteri8.7 in (22 cm)70 gal (265 L)73–81°F (23–27°C)
Gangetic climbing perch
Anabas cobojius9.8 in (25 cm)66 gal (250 L)72–86°F (22–30°C)
Garnet tetra
Hemigrammus pulcher1.8 in (4.5 cm)20 gal (75 L)73–82°F (23–28°C)Giant kuhli loach
Pangio myersi3.9 in (10 cm)20 gal (75 L)72–82°F (22–28°C)
Gill's molly
Poecilia gillii3.9 in (10 cm)26 gal (100 L)72–86°F (22–30°C)
Glass bloodfin tetra
Prionobrama filigera2.4 in (6 cm)20 gal (75 L)73–81°F (23–27°C)
Glass catfish
Kryptopterus vitreolus2.8 in (7 cm)30 gal (115 L)70–79°F (21–26°C)
Glass tetra
Moenkhausia oligolepis2 in (5 cm)18 gal (70 L)75–82°F (24–28°C)
Glowlight danio
Danio choprae1.2 in (3 cm)20 gal (75 L)72–79°F (22–26°C)
Glowlight rasbora
Trigonostigma hengeli1.6 in (4 cm)12 gal (45 L)73–82°F (23–28°C)
Glowlight tetra
Hemigrammus erythrozonus1.6 in (4 cm)18 gal (70 L)75–82°F (24–28°C)
Gold barb
Barbodes semifasciolatus2.8 in (7 cm)20 gal (75 L)64–75°F (18–24°C)
Gold ocellatus shell dweller
Lamprologus ocellatus2.4 in (6 cm)11 gal (40 L)75–81°F (24–27°C)
Gold ring danio
Danio tinwini1.2 in (3 cm)11 gal (40 L)64–79°F (18–26°C)
Gold-Specs Jawfish
Opistognathus randalli3.9 in (10 cm)30 gal (115 L)73–81°F (23–27°C)
Golden Damselfish
Amblyglyphidodon aureus4.7 in (12 cm)53 gal (200 L)75–81°F (24–27°C)
Golden dwarf barb
Pethia gelius1.6 in (4 cm)20 gal (75 L)64–75°F (18–24°C)
Golden dwarf cichlid
Nannacara anomala3.1 in (8 cm)16 gal (60 L)72–82°F (22–28°C)
Golden Dwarf Moray
Gymnothorax melatremus11.8 in (30 cm)65 gal (246 L)72–79°F (22–26°C)
Golden lyretail killifish
Aphyosemion australe2.4 in (6 cm)10 gal (38 L)70–75°F (21–24°C)
Golden Topminnow
Fundulus chrysotus3 in (7.5 cm)22 gal (85 L)59–75°F (15–24°C)Gossei cory
Corydoras gossei2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Grant's peacock
Aulonocara stuartgranti5.1 in (13 cm)74 gal (280 L)75–82°F (24–28°C)
Greater scissortail
Rasbora caudimaculata5.1 in (13 cm)53 gal (200 L)68–79°F (20–26°C)
Green Chromis
Chromis viridis3.1 in (8 cm)30 gal (115 L)75–82°F (24–28°C)
Green Clown Goby
Gobiodon histrio1.8 in (4.5 cm)11 gal (40 L)72–79°F (22–26°C)Green fire tetra
Aphyocharax rathbuni2 in (5 cm)20 gal (75 L)72–79°F (22–26°C)
Green neon rasbora
Microdevario kubotai0.8 in (2 cm)12 gal (45 L)72–79°F (22–26°C)
Green neon tetra
Paracheirodon simulans1 in (2.5 cm)15 gal (55 L)72–86°F (22–30°C)Green panchax
Aplocheilus blockii2 in (5 cm)11 gal (40 L)72–82°F (22–28°C)
Green swordtail
Xiphophorus hellerii5.9 in (15 cm)24 gal (90 L)68–82°F (20–28°C)Guapore cory
Corydoras guapore2 in (5 cm)16 gal (60 L)72–82°F (22–28°C)
Guntea loach
Lepidocephalichthys guntea4.7 in (12 cm)24 gal (90 L)64–82°F (18–28°C)
Guppy
Poecilia reticulata2.4 in (6 cm)13 gal (50 L)64–82°F (18–28°C)
Harlequin Bass
Serranus tigrinus5.1 in (13 cm)53 gal (200 L)73–81°F (23–27°C)
Harlequin rasbora
Trigonostigma heteromorpha2 in (5 cm)15 gal (55 L)72–82°F (22–28°C)
Head-and-taillight tetra
Hemigrammus ocellifer1.8 in (4.5 cm)17 gal (65 L)75–82°F (24–28°C)
Hector's Goby
Koumansetta hectori3.1 in (8 cm)20 gal (75 L)73–81°F (23–27°C)
Helfrich's Firefish
Nemateleotris helfrichi2.4 in (6 cm)20 gal (75 L)73–81°F (23–27°C)
Honduran red point cichlid
Amatitlania siquia3.9 in (10 cm)30 gal (114 L)73–82°F (23–28°C)
Honey gourami
Trichogaster chuna2 in (5 cm)20 gal (75 L)72–82°F (22–28°C)
Hongsloi dwarf cichlid
Apistogramma hongsloi3.1 in (8 cm)20 gal (75 L)73–84°F (23–29°C)
Hoplo catfish
Hoplosternum littorale7.9 in (20 cm)40 gal (150 L)72–81°F (22–27°C)
Humpbacked limia
Limia nigrofasciata2.4 in (6 cm)20 gal (75 L)72–82°F (22–28°C)Ice blue zebra
Metriaclima greshakei5.5 in (14 cm)55 gal (210 L)75–82°F (24–28°C)Inca dwarf cichlid
Apistogramma baenschi2.8 in (7 cm)20 gal (75 L)73–82°F (23–28°C)
Java loach
Pangio oblonga3.1 in (8 cm)25 gal (95 L)70–79°F (21–26°C)
Jellybean tetra
Ladigesia roloffi1.2 in (3 cm)10 gal (37 L)72–81°F (22–27°C)Jeweled splitfin
Xenotoca variata2.8 in (7 cm)20 gal (75 L)64–81°F (18–27°C)
Klein's Butterflyfish
Chaetodon kleinii5.9 in (15 cm)79 gal (300 L)75–81°F (24–27°C)
Kribensis
Pelvicachromis pulcher3.9 in (10 cm)20 gal (75 L)75–81°F (24–27°C)
Kuhli loach
Pangio kuhlii3.9 in (10 cm)20 gal (75 L)72–82°F (22–28°C)
Lake Inle danio
Devario auropurpureus3.1 in (8 cm)24 gal (90 L)64–77°F (18–25°C)
Lawnmower blenny
Salarias fasciatus5.1 in (13 cm)29 gal (110 L)72–79°F (22–26°C)
Least killifish
Heterandria formosa1.4 in (3.5 cm)5 gal (20 L)68–79°F (20–26°C)
Lemon Damsel
Pomacentrus moluccensis3.5 in (9 cm)29 gal (110 L)75–81°F (24–27°C)
Lemon tetra
Hyphessobrycon pulchripinnis2 in (5 cm)17 gal (65 L)72–82°F (22–28°C)
Leopard bush fish
Ctenopoma acutirostre6.3 in (16 cm)40 gal (150 L)68–82°F (20–28°C)
Lesser bleeding heart tetra
Hyphessobrycon socolofi2.2 in (5.6 cm)24 gal (90 L)73–82°F (23–28°C)
Lineatus Fairy Wrasse
Cirrhilabrus lineatus4.7 in (12 cm)90 gal (340 L)73–81°F (23–27°C)
Lubbock's Fairy Wrasse
Cirrhilabrus lubbocki3.1 in (8 cm)55 gal (208 L)72–79°F (22–26°C)
Lyretail Hawkfish
Cyprinocirrhites polyactis5.9 in (15 cm)40 gal (150 L)72–79°F (22–26°C)
Mafia killifish
Nothobranchius korthausae2 in (5 cm)10 gal (38 L)72–79°F (22–26°C)
Magenta Dottyback
Pictichromis porphyrea2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Maroon Clownfish
Premnas biaculeatus6.7 in (17 cm)40 gal (150 L)75–82°F (24–28°C)
Mascara Barb
Dawkinsia assimilis4.7 in (12 cm)53 gal (200 L)66–77°F (19–25°C)
Masked cory
Corydoras metae2 in (5 cm)15 gal (55 L)70–79°F (21–26°C)
Masked julie
Julidochromis transcriptus2.8 in (7 cm)20 gal (75 L)75–81°F (24–27°C)
Mayan cichlid
Mayaheros urophthalmus11.8 in (30 cm)90 gal (340 L)75–86°F (24–30°C)
McCosker's Flasher Wrasse
Paracheilinus mccoskeri3.1 in (8 cm)55 gal (208 L)72–79°F (22–26°C)
Medaka
Oryzias latipes1.4 in (3.5 cm)9 gal (35 L)61–72°F (16–22°C)
Melanurus Wrasse
Halichoeres melanurus5.5 in (14 cm)100 gal (380 L)72–79°F (22–26°C)
Merry widow livebearer
Phallichthys amates2.5 in (6.4 cm)16 gal (60 L)72–86°F (22–30°C)
Metallic livebearer
Girardinus metallicus2.4 in (6 cm)11 gal (40 L)72–81°F (22–27°C)
Midas blenny
Ecsenius midas5.1 in (13 cm)29 gal (110 L)72–79°F (22–26°C)
Miguelito cory
Corydoras virginiae2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Milletseed Butterflyfish
Chaetodon miliaris5.1 in (13 cm)75 gal (285 L)72–79°F (22–26°C)
Mimic Tang
Acanthurus pyroferus11.4 in (29 cm)129 gal (490 L)75–82°F (24–28°C)
Molly Miller Blenny
Scartella cristata4.7 in (12 cm)30 gal (114 L)72–79°F (22–26°C)
Moustached danio
Danio dangila5.1 in (13 cm)32 gal (120 L)68–79°F (20–26°C)
Multie shell dweller
Neolamprologus multifasciatus1.8 in (4.5 cm)20 gal (75 L)75–81°F (24–27°C)
Napo cory
Corydoras napoensis2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)
Neon Damselfish
Pomacentrus coelestis3.5 in (9 cm)29 gal (110 L)75–81°F (24–27°C)
Neon Dottyback
Pseudochromis aldabraensis3.5 in (9 cm)29 gal (110 L)72–79°F (22–26°C)
Neon Goby
Elacatinus oceanops2 in (5 cm)11 gal (40 L)72–79°F (22–26°C)
Neon tetra
Paracheirodon innesi1.5 in (3.8 cm)11 gal (40 L)70–77°F (21–25°C)
New Guinea rainbowfish
Melanotaenia affinis4.7 in (12 cm)30 gal (115 L)68–86°F (20–30°C)
Niger tetra
Arnoldichthys spilopterus3.9 in (10 cm)50 gal (190 L)75–81°F (24–27°C)
Niger Triggerfish
Odonus niger11.8 in (30 cm)180 gal (680 L)72–79°F (22–26°C)
Northern mountain swordtail
Xiphophorus nezahualcoyotl3.5 in (9 cm)29 gal (110 L)68–79°F (20–26°C)
Ocellaris Clownfish
Amphiprion ocellaris3.1 in (8 cm)20 gal (75 L)75–82°F (24–28°C)
Ocellated squeaker
Synodontis ocellifer7.9 in (20 cm)53 gal (200 L)73–81°F (23–27°C)
Odessa Barb
Pethia padamya1.8 in (4.5 cm)20 gal (75 L)61–77°F (16–25°C)
One-Spot Foxface
Siganus unimaculatus7.9 in (20 cm)70 gal (265 L)75–81°F (24–27°C)
Orange Hatchet Danio
Laubuka dadiburjori1.2 in (3 cm)13 gal (50 L)68–75°F (20–24°C)
Orange Skunk Clownfish
Amphiprion sandaracinos5.5 in (14 cm)30 gal (115 L)75–82°F (24–28°C)
Orange-finned danio
Danio kyathit2 in (5 cm)20 gal (75 L)68–79°F (20–26°C)
Orange-Spot Prawn Goby
Amblyeleotris guttata4.3 in (11 cm)30 gal (114 L)72–79°F (22–26°C)
Orbiculate Cardinalfish
Sphaeramia orbicularis3.9 in (10 cm)30 gal (115 L)75–82°F (24–28°C)
Orchid Dottyback
Pseudochromis fridmani2.8 in (7 cm)29 gal (110 L)72–79°F (22–26°C)
Ornate bichir
Polypterus ornatipinnis21.7 in (55 cm)172 gal (650 L)77–82°F (25–28°C)Ornate shell dweller
Lamprologus ornatipinnis2.4 in (6 cm)16 gal (60 L)75–81°F (24–27°C)
Ornate tetra
Hyphessobrycon bentosi1.8 in (4.5 cm)20 gal (75 L)72–82°F (22–28°C)
Pajama Cardinalfish
Sphaeramia nematoptera3.1 in (8 cm)29 gal (110 L)72–81°F (22–27°C)
Pale usisya aulonocara
Aulonocara steveni5.5 in (14 cm)63 gal (240 L)75–82°F (24–28°C)Panama hoplo
Hoplosternum punctatum3.1 in (8 cm)30 gal (115 L)72–79°F (22–26°C)
Panda cory
Corydoras panda2 in (5 cm)15 gal (55 L)72–77°F (22–25°C)
Panda Garra
Garra flavatra3.5 in (9 cm)26 gal (100 L)72–81°F (22–27°C)
Parkinson's rainbowfish
Melanotaenia parkinsoni4.3 in (11 cm)53 gal (200 L)75–82°F (24–28°C)
Pearl danio
Danio albolineatus2.4 in (6 cm)18 gal (70 L)61–77°F (16–25°C)
Pearl eartheater
Geophagus brasiliensis11 in (28 cm)75 gal (284 L)68–79°F (20–26°C)
Pearl gourami
Trichopodus leerii4.7 in (12 cm)30 gal (115 L)75–86°F (24–30°C)
Pearlscale Cichlid
Herichthys carpintis11.8 in (30 cm)55 gal (210 L)75–79°F (24–26°C)
Penguin tetra
Thayeria boehlkei2.6 in (6.5 cm)20 gal (75 L)72–82°F (22–28°C)
Peppered cory
Corydoras paleatus2.8 in (7 cm)21 gal (80 L)72–79°F (22–26°C)
Percula Clownfish
Amphiprion percula3.1 in (8 cm)20 gal (75 L)75–82°F (24–28°C)
Perugia's limia
Limia perugiae2.8 in (7 cm)20 gal (75 L)72–82°F (22–28°C)
Pictus Blenny
Ecsenius pictus2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Pink cory
Corydoras axelrodi2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)
Pink Skunk Clownfish
Amphiprion perideraion3.9 in (10 cm)30 gal (115 L)75–82°F (24–28°C)
Pink-Spotted Watchman Goby
Cryptocentrus leptocephalus3.9 in (10 cm)30 gal (115 L)73–81°F (23–27°C)
Pink-tail chalceus
Chalceus macrolepidotus9.8 in (25 cm)63 gal (240 L)73–82°F (23–28°C)
Pinkbar Goby
Amblyeleotris aurora4.3 in (11 cm)30 gal (115 L)73–81°F (23–27°C)
Pixy Hawkfish
Cirrhitichthys oxycephalus3.9 in (10 cm)29 gal (110 L)72–79°F (22–26°C)
Playfair's panchax
Pachypanchax playfairii3.9 in (10 cm)20 gal (75 L)72–77°F (22–25°C)Popondetta blue-eye
Pseudomugil connieae2 in (5 cm)11 gal (40 L)75–82°F (24–28°C)
Porthole catfish
Dianema longibarbis3.9 in (10 cm)26 gal (100 L)75–82°F (24–28°C)
Porthole livebearer
Poeciliopsis gracilis3.5 in (9 cm)11 gal (40 L)72–82°F (22–28°C)Powder blue cichlid
Chindongo socolofi4.7 in (12 cm)53 gal (200 L)75–81°F (24–27°C)Prima betta
Betta prima2 in (5 cm)16 gal (60 L)73–81°F (23–27°C)
Pumpkinseed Sunfish
Lepomis gibbosus9.8 in (25 cm)70 gal (265 L)41–73°F (5–23°C)
Purple Firefish
Nemateleotris decora3.5 in (9 cm)20 gal (75 L)72–79°F (22–26°C)Purple tetra
Hyphessobrycon metae1.8 in (4.5 cm)20 gal (75 L)73–82°F (23–28°C)
Rainbow Cichlid
Herotilapia multispinosa6.3 in (16 cm)26 gal (100 L)72–82°F (22–28°C)Randall's Assessor
Assessor randalli3.1 in (8 cm)29 gal (110 L)73–81°F (23–27°C)
Red eye tetra
Moenkhausia sanctaefilomenae2.8 in (7 cm)28 gal (105 L)72–79°F (22–26°C)
Red fin hap
Copadichromis borleyi7.9 in (20 cm)79 gal (300 L)77–84°F (25–29°C)
Red flush tetra
Hemigrammus stictus2.4 in (6 cm)20 gal (75 L)73–81°F (23–27°C)
Red head Tapajos
Geophagus pyrocephalus6.3 in (16 cm)79 gal (300 L)79–86°F (26–30°C)
Red hump eartheater
Geophagus steindachneri5.9 in (15 cm)53 gal (200 L)72–82°F (22–28°C)
Red phantom tetra
Hyphessobrycon sweglesi1.6 in (4 cm)15 gal (55 L)72–82°F (22–28°C)
Red rainbowfish
Glossolepis incisus5.5 in (14 cm)34 gal (130 L)72–77°F (22–25°C)
Red Saddleback Anemonefish
Amphiprion ephippium5.5 in (14 cm)30 gal (115 L)75–81°F (24–27°C)
Red Sea Mimic Blenny
Ecsenius gravieri3.1 in (8 cm)20 gal (75 L)75–81°F (24–27°C)
Red wolf fish
Erythrinus erythrinus7.9 in (20 cm)40 gal (150 L)72–79°F (22–26°C)
Red-chinned panchax
Epiplatys dageti1.8 in (4.5 cm)20 gal (75 L)70–75°F (21–24°C)Red-seam Killifish
Aphyosemion calliurum2.2 in (5.5 cm)20 gal (75 L)75–82°F (24–28°C)Red-spotted tetra
Copeina guttata3.9 in (10 cm)32 gal (120 L)73–82°F (23–28°C)
Red-striped killifish
Aphyosemion striatum2 in (5 cm)11 gal (40 L)70–77°F (21–25°C)
Red-striped rasbora
Trigonopoma pauciperforata2.8 in (7 cm)22 gal (85 L)70–79°F (21–26°C)
Red-tailed rasbora
Rasbora borapetensis2.4 in (6 cm)18 gal (70 L)72–79°F (22–26°C)
Redback paradisefish
Macropodus erythropterus3.1 in (8 cm)20 gal (75 L)68–86°F (20–30°C)Redbreast acara
Laetacara dorsigera2.8 in (7 cm)20 gal (75 L)72–81°F (22–27°C)
Redline Torpedo Barb
Sahyadria denisonii4.3 in (11 cm)53 gal (200 L)59–77°F (15–25°C)
Redtail splitfin
Xenotoca eiseni2.8 in (7 cm)20 gal (75 L)64–82°F (18–28°C)
Reticulated cory
Corydoras reticulatus2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Ropefish
Erpetoichthys calabaricus14.6 in (37 cm)143 gal (540 L)73–86°F (23–30°C)
Rosy barb
Pethia conchonius2.8 in (7 cm)24 gal (90 L)61–75°F (16–24°C)
Rosy bitterling
Rhodeus ocellatus3.1 in (8 cm)21 gal (80 L)64–75°F (18–24°C)Rosy loach
Petruichthys sp. 'rosy'1.2 in (3 cm)14 gal (54 L)68–79°F (20–26°C)
Rosy tetra
Hyphessobrycon rosaceus1.6 in (4 cm)15 gal (55 L)75–82°F (24–28°C)
Round-tail paradise fish
Macropodus ocellatus3.1 in (8 cm)20 gal (75 L)61–75°F (16–24°C)
Royal Gramma
Gramma loreto3.1 in (8 cm)29 gal (110 L)72–81°F (22–27°C)
Royal tetra
Inpaichthys kerri1.4 in (3.5 cm)15 gal (55 L)75–81°F (24–27°C)
Rummy-nose tetra
Hemigrammus rhodostomus2 in (5 cm)20 gal (75 L)75–81°F (24–27°C)
Rust cory
Corydoras rabauti2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Rusty cichlid
Iodotropheus sprengerae3.9 in (10 cm)24 gal (90 L)77–84°F (25–29°C)
Saddle cichlid
Aequidens tetramerus7.9 in (20 cm)53 gal (200 L)75–82°F (24–28°C)
Sailfin molly
Poecilia latipinna4.7 in (12 cm)24 gal (90 L)70–79°F (21–26°C)
Salt and pepper cory
Corydoras habrosus1.4 in (3.5 cm)15 gal (55 L)68–79°F (20–26°C)
Sands cory
Corydoras davidsandsi2.4 in (6 cm)21 gal (80 L)72–79°F (22–26°C)Sankey's Dottyback
Pseudochromis sankeyi3.1 in (8 cm)29 gal (110 L)75–82°F (24–28°C)
Saulosi Mbuna
Pseudotropheus saulosi3.9 in (10 cm)42 gal (160 L)73–81°F (23–27°C)
Schooling Bannerfish
Heniochus diphreutes8.3 in (21 cm)124 gal (470 L)75–81°F (24–27°C)
Scissortail Dartfish
Ptereleotris evides5.5 in (14 cm)29 gal (110 L)72–79°F (22–26°C)
Scissortail rasbora
Rasbora trilineata5.5 in (14 cm)45 gal (170 L)72–77°F (22–25°C)
Scopas Tang
Zebrasoma scopas7.9 in (20 cm)90 gal (340 L)75–82°F (24–28°C)
Scott's Fairy Wrasse
Cirrhilabrus scottorum5.1 in (13 cm)90 gal (340 L)73–81°F (23–27°C)
Sebae Clownfish
Amphiprion sebae5.9 in (15 cm)30 gal (115 L)75–82°F (24–28°C)
Sepik rainbowfish
Glossolepis multisquamata5.5 in (14 cm)55 gal (208 L)79–86°F (26–30°C)
Serpae tetra
Hyphessobrycon serpae1.8 in (4.5 cm)17 gal (65 L)68–82°F (20–28°C)
Sharknose Goby
Elacatinus evelynae1.6 in (4 cm)13 gal (50 L)75–79°F (24–26°C)
Sharptooth tetra
Micralestes acutidens3.5 in (9 cm)32 gal (120 L)72–79°F (22–26°C)
Shortfin molly
Poecilia mexicana4.3 in (11 cm)32 gal (120 L)72–82°F (22–28°C)
Shubunkin
Carassius auratus11.8 in (30 cm)50 gal (190 L)39–75°F (4–24°C)Sicklefin livebearer
Girardinus falcatus2.6 in (6.5 cm)11 gal (40 L)68–82°F (20–28°C)Sidestripe rasbora
Rasbora paviana3.1 in (8 cm)32 gal (120 L)72–79°F (22–26°C)
Silver flying fox
Crossocheilus reticulatus6.3 in (16 cm)53 gal (200 L)64–77°F (18–25°C)
Silver shark
Balantiocheilus melanopterus15.7 in (40 cm)95 gal (360 L)72–82°F (22–28°C)
Silvertip tetra
Hasemania nana1.6 in (4 cm)18 gal (70 L)73–82°F (23–28°C)
Similis shell dweller
Neolamprologus similis2 in (5 cm)20 gal (75 L)75–81°F (24–27°C)
Six-barred panchax
Epiplatys sexfasciatus3.9 in (10 cm)20 gal (75 L)72–81°F (22–27°C)
Six-line wrasse
Pseudocheilinus hexataenia3.1 in (8 cm)29 gal (110 L)72–79°F (22–26°C)
Skunk Clownfish
Amphiprion akallopisos4.3 in (11 cm)26 gal (100 L)75–82°F (24–28°C)
Skunk cory
Corydoras arcuatus2.2 in (5.5 cm)20 gal (75 L)72–79°F (22–26°C)
Slender buffalohead cichlid
Steatocranus tinanti5.1 in (13 cm)24 gal (90 L)75–82°F (24–28°C)
Slender catfish
Pimelodella gracilis6.7 in (17 cm)40 gal (150 L)72–79°F (22–26°C)
Slender rasbora
Rasbora daniconius3.9 in (10 cm)32 gal (120 L)72–81°F (22–27°C)
Snakeskin barb
Desmopuntius rhomboocellatus2.2 in (5.5 cm)20 gal (75 L)72–82°F (22–28°C)
Snowflake Eel
Echidna nebulosa39.4 in (100 cm)50 gal (189 L)72–79°F (22–26°C)
Social fairy wrasse
Cirrhilabrus rubriventralis2.8 in (7 cm)53 gal (200 L)73–81°F (23–27°C)
Solar Fairy Wrasse
Cirrhilabrus solorensis4.3 in (11 cm)90 gal (340 L)72–79°F (22–26°C)
South American bumblebee catfish
Microglanis iheringi3.1 in (8 cm)20 gal (75 L)72–79°F (22–26°C)
Southern platy
Xiphophorus maculatus2.8 in (7 cm)15 gal (55 L)68–79°F (20–26°C)
Spiketail paradisefish
Pseudosphromenus cupanus2.6 in (6.5 cm)12 gal (45 L)68–82°F (20–28°C)
Splash tetra
Copella arnoldi2.2 in (5.5 cm)18 gal (70 L)68–82°F (20–28°C)
Spotted barb
Barbodes binotatus5.9 in (15 cm)40 gal (150 L)72–79°F (22–26°C)
Spotted betta
Betta picta2 in (5 cm)16 gal (60 L)72–81°F (22–27°C)
Spotted danio
Danio nigrofasciatus1.5 in (3.7 cm)11 gal (40 L)64–79°F (18–26°C)
Spotted hoplo
Megalechis thoracata5.9 in (15 cm)40 gal (150 L)64–82°F (18–28°C)Spotted metynnis
Metynnis maculatus7.1 in (18 cm)92 gal (350 L)73–82°F (23–28°C)
Spotted silver dollar
Metynnis lippincottianus5.5 in (14 cm)53 gal (200 L)73–81°F (23–27°C)Spotted splash tetra
Copella nattereri2 in (5 cm)16 gal (60 L)75–82°F (24–28°C)
Springer's Damsel
Chrysiptera springeri2.8 in (7 cm)25 gal (95 L)75–81°F (24–27°C)
Springer's Dottyback
Pseudochromis springeri2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Star sapphire cichlid
Placidochromis phenochilus7.9 in (20 cm)79 gal (300 L)77–82°F (25–28°C)
Starck's Damsel
Chrysiptera starcki3.5 in (9 cm)29 gal (110 L)73–81°F (23–27°C)Starlight Bristlenose Pleco (L183)
Ancistrus dolichopterus5.5 in (14 cm)30 gal (115 L)79–84°F (26–29°C)
Starry Blenny
Salarias ramosus5.5 in (14 cm)30 gal (114 L)72–79°F (22–26°C)
Sterba's cory
Corydoras sterbai2.6 in (6.5 cm)20 gal (75 L)75–82°F (24–28°C)
Stoliczka's barb
Pethia stoliczkana2 in (5 cm)20 gal (75 L)64–79°F (18–26°C)
Striped flying barb
Esomus metallicus3 in (7.5 cm)24 gal (90 L)72–79°F (22–26°C)
Striped glass catfish
Kryptopterus macrocephalus3.5 in (9 cm)36 gal (135 L)70–79°F (21–26°C)
Striped kribensis
Pelvicachromis taeniatus3.1 in (8 cm)19 gal (71 L)75–79°F (24–26°C)
Striped panchax
Aplocheilus lineatus4.3 in (11 cm)30 gal (115 L)72–77°F (22–25°C)
Striped Poison-Fang Blenny
Meiacanthus grammistes4.3 in (11 cm)29 gal (110 L)73–79°F (23–26°C)Striped telmatochromis
Telmatochromis vittatus3.5 in (9 cm)20 gal (75 L)75–81°F (24–27°C)
Stripefin eartheater
Gymnogeophagus rhabdotus5.9 in (15 cm)53 gal (200 L)64–79°F (18–26°C)Sulfurhead peacock
Aulonocara maylandi4.3 in (11 cm)66 gal (250 L)77–82°F (25–28°C)
Sunrise Dottyback
Pseudochromis flavivertex3.1 in (8 cm)29 gal (110 L)75–82°F (24–28°C)
Sunshine peacock cichlid
Aulonocara baenschi4.3 in (11 cm)63 gal (240 L)77–84°F (25–29°C)
T-bar cichlid
Cryptoheros sajica4.7 in (12 cm)40 gal (150 L)75–82°F (24–28°C)
Tailspot blenny
Ecsenius stigmatura2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Tailspot Cory
Corydoras caudimaculatus2 in (5 cm)20 gal (75 L)68–81°F (20–27°C)
Talbot's Damsel
Chrysiptera talboti2.4 in (6 cm)29 gal (110 L)75–81°F (24–27°C)Talking catfish
Acanthodoras spinosissimus5.9 in (15 cm)26 gal (100 L)72–82°F (22–28°C)
Thick-lipped gourami
Trichogaster labiosa3.5 in (9 cm)20 gal (75 L)72–82°F (22–28°C)
Three spot gourami
Trichopodus trichopterus5.1 in (13 cm)30 gal (115 L)75–86°F (24–30°C)
Three-Stripe Damsel
Dascyllus aruanus3.5 in (9 cm)29 gal (110 L)75–81°F (24–27°C)
Threestripe croaking gourami
Trichopsis schalleri2 in (5 cm)12 gal (45 L)72–82°F (22–28°C)
Ticto barb
Pethia ticto2.4 in (6 cm)20 gal (75 L)64–75°F (18–24°C)
Tiger barb
Puntigrus tetrazona2.8 in (7 cm)20 gal (75 L)68–79°F (20–26°C)
Tomato Clownfish
Amphiprion frenatus5.5 in (14 cm)30 gal (115 L)75–82°F (24–28°C)Two-banded killifish
Chromaphyosemion bitaeniatum2.2 in (5.5 cm)10 gal (38 L)72–79°F (22–26°C)
Two-barred Rabbitfish
Siganus virgatus11.8 in (30 cm)119 gal (450 L)75–81°F (24–27°C)Two-spot catfish
Mystus bimaculatus4.7 in (12 cm)30 gal (114 L)72–81°F (22–27°C)Twostripe pencilfish
Nannostomus digrammus1.4 in (3.5 cm)12 gal (45 L)75–82°F (24–28°C)
Upside-down catfish
Synodontis nigriventris3.9 in (10 cm)30 gal (115 L)75–82°F (24–28°C)
Variable platy
Xiphophorus variatus2.8 in (7 cm)15 gal (55 L)68–79°F (20–26°C)
Venezuelan orange cory
Corydoras venezuelanus2.4 in (6 cm)20 gal (75 L)68–79°F (20–26°C)
Vermiculated squeaker
Synodontis schoutedeni5.9 in (15 cm)24 gal (90 L)72–81°F (22–27°C)
Vietnamese white cloud
Tanichthys micagemmae1.2 in (3 cm)12 gal (45 L)64–73°F (18–23°C)
Violet cory
Corydoras similis2.2 in (5.5 cm)12 gal (45 L)70–81°F (21–27°C)
Weather Loach
Misgurnus anguillicaudatus11 in (28 cm)55 gal (210 L)50–73°F (10–23°C)West African Bichir
Polypterus retropinnis13.8 in (35 cm)53 gal (200 L)77–82°F (25–28°C)
Western Mosquitofish
Gambusia affinis3 in (7.5 cm)7 gal (25 L)64–81°F (18–27°C)
Wheeler's Prawn Goby
Amblyeleotris wheeleri3.9 in (10 cm)30 gal (114 L)72–79°F (22–26°C)
White Cloud Mountain minnow
Tanichthys albonubes1.6 in (4 cm)12 gal (45 L)57–72°F (14–22°C)
X-ray tetra
Pristella maxillaris1.8 in (4.5 cm)18 gal (70 L)72–82°F (22–28°C)
Xingu cory
Corydoras xinguensis2 in (5 cm)18 gal (70 L)72–81°F (22–27°C)
Yellow Assessor
Assessor flavissimus2.8 in (7 cm)29 gal (110 L)72–79°F (22–26°C)
Yellow Clown Goby
Gobiodon okinawae1.6 in (4 cm)11 gal (40 L)73–81°F (23–27°C)
Yellow Coris Wrasse
Halichoeres chrysus4.7 in (12 cm)40 gal (150 L)73–81°F (23–27°C)
Yellow Kribensis
Pelvicachromis humilis4.9 in (12.5 cm)30 gal (115 L)75–81°F (24–27°C)
Yellow Watchman Goby
Cryptocentrus cinctus3.5 in (9 cm)20 gal (75 L)72–81°F (22–27°C)
Yellowstriped Cardinalfish
Ostorhinchus cyanosoma3.1 in (8 cm)30 gal (114 L)72–79°F (22–26°C)
Yellowtail Damsel
Chrysiptera parasema2.8 in (7 cm)29 gal (110 L)75–81°F (24–27°C)Yoma danio
Danio feegradei2 in (5 cm)20 gal (75 L)72–79°F (22–26°C)
Zebra acara
Nannacara adoketa4.7 in (12 cm)25 gal (95 L)72–82°F (22–28°C)
Zebra danio
Danio rerio2 in (5 cm)15 gal (55 L)64–75°F (18–24°C)
Zebra Dartfish
Ptereleotris zebra4.7 in (12 cm)29 gal (110 L)72–79°F (22–26°C)
Zebra mbuna
Metriaclima zebra5.9 in (15 cm)55 gal (210 L)75–82°F (24–28°C)Zipper loach
Paracanthocobitis botia3.9 in (10 cm)29 gal (110 L)70–79°F (21–26°C)
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