Schooling aquarium fish
Schooling fish live in groups and behave best when you keep enough of them. Kept short-handed they hide or nip; in a proper school they color up and use the whole tank. Profiles list tank size and conditions for each species.
364 species
Adolfo's cory
Corydoras adolfoi2.4 in (6 cm)20 gal (75 L)70–79°F (21–26°C)
African Banded Barb
Barbus fasciolatus2.4 in (6 cm)20 gal (75 L)68–79°F (20–26°C)
African Butterfly Barb
Barbus hulstaerti1.4 in (3.5 cm)11 gal (40 L)63–75°F (17–24°C)African Moon Tetra
Bathyaethiops caudomaculatus3.1 in (8 cm)22 gal (85 L)72–77°F (22–25°C)
African oneline tetra
Nannaethiops unitaeniatus2.6 in (6.5 cm)16 gal (60 L)72–79°F (22–26°C)
Agassiz's cory
Corydoras agassizii2.8 in (7 cm)24 gal (90 L)72–79°F (22–26°C)
Albater cory
Aspidoras albater1.6 in (4 cm)16 gal (60 L)72–77°F (22–25°C)
Amazon puffer
Colomesus asellus4.7 in (12 cm)26 gal (100 L)72–82°F (22–28°C)
Arulius barb
Dawkinsia arulius3.9 in (10 cm)37 gal (140 L)66–77°F (19–25°C)Aspidoras Cory-Cat
Aspidoras raimundi1.8 in (4.5 cm)15 gal (55 L)68–77°F (20–25°C)
Australian rainbowfish
Melanotaenia fluviatilis4.3 in (11 cm)30 gal (115 L)68–77°F (20–25°C)
Banded cory
Scleromystax barbatus3.9 in (10 cm)40 gal (150 L)66–75°F (19–24°C)
Banded rainbowfish
Melanotaenia trifasciata5.9 in (15 cm)50 gal (190 L)75–84°F (24–29°C)
Banded tiger loach
Syncrossus helodes11.8 in (30 cm)75 gal (285 L)75–86°F (24–30°C)Bannertail cory
Corydoras robineae2.6 in (6.5 cm)20 gal (75 L)73–79°F (23–26°C)Barred danio
Devario pathirana2.4 in (6 cm)24 gal (90 L)70–79°F (21–26°C)
Barred pencilfish
Nannostomus espei1.2 in (3 cm)15 gal (55 L)72–82°F (22–28°C)
Barred rainbowfish
Chilatherina fasciata4.7 in (12 cm)53 gal (200 L)75–86°F (24–30°C)
Barred-tail cory
Corydoras cochui1.4 in (3.5 cm)13 gal (50 L)70–82°F (21–28°C)
Bengal danio
Devario devario3.5 in (9 cm)34 gal (130 L)59–81°F (15–27°C)
Bengal loach
Botia dario5.1 in (13 cm)37 gal (140 L)73–79°F (23–26°C)Bigspot barb
Barbodes dunckeri5.1 in (13 cm)53 gal (200 L)75–82°F (24–28°C)
Black band cory
Corydoras zygatus2.6 in (6.5 cm)21 gal (80 L)72–79°F (22–26°C)
Black Neon Tetra
Hyphessobrycon herbertaxelrodi1.4 in (3.5 cm)16 gal (60 L)72–82°F (22–28°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)
Blackfin Cory
Corydoras leucomelas1.8 in (4.5 cm)16 gal (60 L)73–79°F (23–26°C)Blackstripe cory
Corydoras bondi2 in (5 cm)15 gal (55 L)70–79°F (21–26°C)Blacktop cory
Corydoras acutus1.7 in (4.4 cm)13 gal (50 L)72–82°F (22–28°C)
Blackwing hatchetfish
Carnegiella marthae1.4 in (3.5 cm)30 gal (115 L)68–82°F (20–28°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)
Bloodfin tetra
Aphyocharax anisitsi2.2 in (5.5 cm)20 gal (75 L)72–82°F (22–28°C)Blue axelrodi rasbora
Sundadanio axelrodi0.8 in (2 cm)12 gal (45 L)73–79°F (23–26°C)
Blue Chromis
Chromis cyanea5.1 in (13 cm)53 gal (200 L)73–81°F (23–27°C)
Blue cory
Corydoras nattereri2.6 in (6.5 cm)20 gal (75 L)68–73°F (20–23°C)
Blue danio
Danio kerri1.8 in (4.5 cm)11 gal (40 L)68–79°F (20–26°C)
Blue dolphin cichlid
Cyrtocara moorii9.8 in (25 cm)66 gal (250 L)77–84°F (25–29°C)
Blue spotted hill trout
Barilius bakeri5.1 in (13 cm)53 gal (200 L)64–79°F (18–26°C)
Blue tetra
Knodus borki2 in (5 cm)22 gal (85 L)72–79°F (22–26°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)
Boeseman's rainbowfish
Melanotaenia boesemani4.3 in (11 cm)30 gal (115 L)81–86°F (27–30°C)
Borneo glass catfish
Ompok eugeneiatus6.5 in (16.5 cm)45 gal (170 L)70–82°F (21–28°C)
Brilliant rasbora
Rasbora einthovenii3.5 in (9 cm)20 gal (75 L)72–82°F (22–28°C)Brittan’s rasbora
Kottelatia brittani2.4 in (6 cm)16 gal (60 L)68–79°F (20–26°C)
Bronze cory
Corydoras aeneus3 in (7.5 cm)20 gal (75 L)70–81°F (21–27°C)
Brown-Point Shield Skin
Aspidoras fuscoguttatus1.5 in (3.8 cm)13 gal (50 L)72–77°F (22–25°C)
Bucktooth tetra
Exodon paradoxus4.7 in (12 cm)45 gal (170 L)73–82°F (23–28°C)
Buenos Aires tetra
Hyphessobrycon anisitsi3 in (7.5 cm)25 gal (95 L)66–81°F (19–27°C)Burgess's cory
Corydoras burgessi2.2 in (5.5 cm)20 gal (75 L)72–79°F (22–26°C)
Canara pearlspot
Etroplus canarensis4.3 in (11 cm)55 gal (210 L)72–90°F (22–32°C)
Cardinal tetra
Paracheirodon axelrodi1.8 in (4.5 cm)16 gal (60 L)73–84°F (23–29°C)
Celebes halfbeak
Nomorhamphus liemi3.5 in (9 cm)40 gal (150 L)68–77°F (20–25°C)
Celebes rainbow
Marosatherina ladigesi3.1 in (8 cm)25 gal (95 L)72–82°F (22–28°C)
Celestial Pearl danio
Danio margaritatus0.8 in (2 cm)9 gal (35 L)72–79°F (22–26°C)
Ceros Tetra
Moenkhausia ceros2 in (5 cm)16 gal (60 L)75–82°F (24–28°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)
Chili rasbora
Boraras brigittae0.8 in (2 cm)7 gal (25 L)72–82°F (22–28°C)
Clown Barb
Barbodes everetti4.7 in (12 cm)40 gal (150 L)64–82°F (18–28°C)
Clown loach
Chromobotia macracanthus11.8 in (30 cm)75 gal (285 L)75–86°F (24–30°C)
Clown rasbora
Rasbora kalochroma3.9 in (10 cm)34 gal (130 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)
Common hatchetfish
Gasteropelecus sternicla1.6 in (4 cm)33 gal (125 L)68–82°F (20–28°C)
Common otocinclus
Otocinclus vittatus2 in (5 cm)20 gal (75 L)72–79°F (22–26°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 Tang
Acanthurus triostegus10.6 in (27 cm)124 gal (470 L)75–82°F (24–28°C)
Coral red pencilfish
Nannostomus mortenthaleri1.2 in (3 cm)15 gal (55 L)75–82°F (24–28°C)Cross loach
Micronemacheilus cruciatus1.6 in (4 cm)14 gal (54 L)68–77°F (20–25°C)
Cuckoo squeaker
Synodontis multipunctatus9.8 in (25 cm)50 gal (190 L)75–82°F (24–28°C)Cuming's barb
Pethia cumingii2 in (5 cm)16 gal (60 L)72–81°F (22–27°C)
Cupid cichlid
Biotodoma cupido4.7 in (12 cm)53 gal (200 L)68–86°F (20–30°C)
Daisy's Ricefish
Oryzias woworae1.2 in (3 cm)9 gal (35 L)73–81°F (23–27°C)
Danionella cerebrum
Danionella cerebrum0.5 in (1.3 cm)8 gal (30 L)72–82°F (22–28°C)
Delicate blue-eye
Pseudomugil tenellus2.2 in (5.5 cm)20 gal (75 L)77–90°F (25–32°C)
Diamond tetra
Moenkhausia pittieri2.4 in (6 cm)20 gal (75 L)75–82°F (24–28°C)
Dirty Bandit Cory
Corydoras loxozonus2 in (5 cm)16 gal (60 L)70–75°F (21–24°C)
Discus
Symphysodon aequifasciatus7.9 in (20 cm)65 gal (245 L)79–90°F (26–32°C)
Disk tetra
Myleus schomburgkii15.7 in (40 cm)170 gal (645 L)73–81°F (23–27°C)
Dracula fish
Danionella dracula0.7 in (1.7 cm)11 gal (40 L)68–79°F (20–26°C)
Drape-fin barb
Oreichthys crenuchoides1.6 in (4 cm)14 gal (54 L)73–82°F (23–28°C)
Duboulayi's rainbowfish
Melanotaenia duboulayi4.7 in (12 cm)30 gal (115 L)64–82°F (18–28°C)
Duplicate cory
Corydoras duplicareus2 in (5 cm)20 gal (75 L)72–79°F (22–26°C)Dwarf barb
Pethia phutunio1.4 in (3.5 cm)12 gal (45 L)72–79°F (22–26°C)
Dwarf botia
Ambastaia sidthimunki2.4 in (6 cm)20 gal (75 L)68–86°F (20–30°C)
Dwarf cory
Corydoras hastatus1.3 in (3.2 cm)12 gal (45 L)68–79°F (20–26°C)
Dwarf pencilfish
Nannostomus marginatus1 in (2.5 cm)12 gal (45 L)72–82°F (22–28°C)
Dwarf rainbowfish
Melanotaenia maccullochi2.8 in (7 cm)20 gal (75 L)72–82°F (22–28°C)
Dwarf rasbora
Boraras maculatus1 in (2.5 cm)7 gal (25 L)72–82°F (22–28°C)
Eartheater cichlid
Geophagus altifrons9.8 in (25 cm)115 gal (435 L)79–90°F (26–32°C)
Eastern rainbowfish
Melanotaenia splendida splendida5.9 in (15 cm)50 gal (190 L)75–84°F (24–29°C)Ehrhardt's cory
Corydoras ehrhardti2 in (5 cm)16 gal (60 L)66–77°F (19–25°C)
Elegant cory
Corydoras elegans2.1 in (5.4 cm)16 gal (60 L)68–79°F (20–26°C)
Ember tetra
Hyphessobrycon amandae0.8 in (2 cm)9 gal (35 L)72–82°F (22–28°C)
Emerald catfish
Corydoras splendens3.1 in (8 cm)40 gal (150 L)70–82°F (21–28°C)
Emerald dwarf rasbora
Danio erythromicron0.8 in (2 cm)11 gal (40 L)68–75°F (20–24°C)
Emperor tetra
Nematobrycon palmeri2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Espei rasbora
Trigonostigma espei1.5 in (3.8 cm)11 gal (40 L)73–82°F (23–28°C)
European Bitterling
Rhodeus amarus3.9 in (10 cm)34 gal (130 L)55–72°F (13–22°C)
European minnow
Phoxinus phoxinus5.1 in (13 cm)45 gal (170 L)54–68°F (12–20°C)Evelyn's cory
Corydoras evelynae1.6 in (4 cm)15 gal (55 L)72–79°F (22–26°C)
Even-Spotted squeaker
Synodontis petricola4.7 in (12 cm)45 gal (170 L)75–82°F (24–28°C)
Exclamation-point rasbora
Boraras urophthalmoides0.6 in (1.6 cm)11 gal (40 L)73–81°F (23–27°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)
False bandit cory
Corydoras melini2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)
False blochi cory
Corydoras delphax2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)False network catfish
Corydoras sodalis2.2 in (5.5 cm)16 gal (60 L)72–79°F (22–26°C)
False rummynose tetra
Petitella georgiae2 in (5 cm)29 gal (110 L)72–79°F (22–26°C)
Fathead minnow
Pimephales promelas3 in (7.5 cm)20 gal (75 L)50–72°F (10–22°C)
Filament Barb
Dawkinsia filamentosa5.1 in (13 cm)53 gal (200 L)68–77°F (20–25°C)
Five-banded barb
Desmopuntius pentazona2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Flag Tetra
Hyphessobrycon heterorhabdus1.4 in (3.5 cm)16 gal (60 L)70–81°F (21–27°C)
Flame tetra
Hyphessobrycon flammeus1 in (2.5 cm)10 gal (38 L)68–79°F (20–26°C)
Forktail blue-eye
Pseudomugil furcatus2.2 in (5.5 cm)22 gal (85 L)75–82°F (24–28°C)Fowler's cory
Corydoras fowleri2.8 in (7 cm)26 gal (100 L)72–79°F (22–26°C)
Freshwater needlefish
Xenentodon cancila13.8 in (35 cm)85 gal (320 L)66–86°F (19–30°C)
Frontosa cichlid
Cyphotilapia frontosa12.6 in (32 cm)227 gal (860 L)73–81°F (23–27°C)Gangetic loach
Botia rostrata4.7 in (12 cm)42 gal (160 L)66–81°F (19–27°C)
Garnet tetra
Hemigrammus pulcher1.8 in (4.5 cm)20 gal (75 L)73–82°F (23–28°C)Giant Brochis
Brochis britskii3.5 in (9 cm)40 gal (150 L)70–79°F (21–26°C)
Giant danio
Devario aequipinnatus5.9 in (15 cm)50 gal (190 L)72–81°F (22–27°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 laser cory
Corydoras melanotaenia2.4 in (6 cm)17 gal (65 L)68–73°F (20–23°C)
Gold ring danio
Danio tinwini1.2 in (3 cm)11 gal (40 L)64–79°F (18–26°C)
Golden dwarf barb
Pethia gelius1.6 in (4 cm)20 gal (75 L)64–75°F (18–24°C)
Golden dwarf sucker
Otocinclus macrospilus1.4 in (3.5 cm)11 gal (40 L)70–79°F (21–26°C)
Golden pencilfish
Nannostomus beckfordi2.4 in (6 cm)18 gal (70 L)70–81°F (21–27°C)
Golden Tetra
Hemigrammus rodwayi2.2 in (5.5 cm)20 gal (75 L)75–82°F (24–28°C)
Golden Topminnow
Fundulus chrysotus3 in (7.5 cm)22 gal (85 L)59–75°F (15–24°C)Gomez's cory
Corydoras gomezi2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Gossei cory
Corydoras gossei2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Graceful rasbora
Trigonopoma gracile2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)
Greater scissortail
Rasbora caudimaculata5.1 in (13 cm)53 gal (200 L)68–79°F (20–26°C)
Green chromide
Etroplus suratensis11.8 in (30 cm)145 gal (550 L)68–86°F (20–30°C)
Green Chromis
Chromis viridis3.1 in (8 cm)30 gal (115 L)75–82°F (24–28°C)Green fire tetra
Aphyocharax rathbuni2 in (5 cm)20 gal (75 L)72–79°F (22–26°C)Green lizard tetra
Iguanodectes spilurus3.5 in (9 cm)32 gal (120 L)73–82°F (23–28°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 tiger loach
Syncrossus hymenophysa8.3 in (21 cm)40 gal (150 L)77–86°F (25–30°C)Guapore cory
Corydoras guapore2 in (5 cm)16 gal (60 L)72–82°F (22–28°C)
Half-banded kuhli loach
Pangio semicincta3.9 in (10 cm)28 gal (105 L)70–79°F (21–26°C)
Harlequin rasbora
Trigonostigma heteromorpha2 in (5 cm)15 gal (55 L)72–82°F (22–28°C)
Harrison's pencilfish
Nannostomus harrisoni2.2 in (5.5 cm)16 gal (60 L)73–82°F (23–28°C)
Head-and-taillight tetra
Hemigrammus ocellifer1.8 in (4.5 cm)17 gal (65 L)75–82°F (24–28°C)
Heckel discus
Symphysodon discus7.1 in (18 cm)75 gal (284 L)82–88°F (28–31°C)
Hockeystick pencilfish
Nannostomus eques1.4 in (3.5 cm)15 gal (55 L)72–82°F (22–28°C)
Hognosed brochis
Brochis multiradiatus3.5 in (9 cm)40 gal (150 L)70–79°F (21–26°C)Honey blue-eye
Pseudomugil mellis1.4 in (3.5 cm)11 gal (40 L)68–82°F (20–28°C)
Horseman cory
Corydoras eques2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)Hummingbird tetra
Trochilocharax ornatus0.8 in (2 cm)12 gal (45 L)73–81°F (23–27°C)
Humphead glassfish
Parambassis pulcinella3.9 in (10 cm)32 gal (120 L)73–81°F (23–27°C)
Imitator cory
Corydoras imitator2.6 in (6.5 cm)21 gal (80 L)72–79°F (22–26°C)
Indian glassy fish
Parambassis ranga3.1 in (8 cm)20 gal (75 L)68–86°F (20–30°C)
Iridescent shark
Pangasianodon hypophthalmus39.4 in (100 cm)528 gal (2,000 L)72–79°F (22–26°C)
Jae barb
Enteromius jae1.6 in (4 cm)16 gal (60 L)68–77°F (20–25°C)
January tetra
Hemigrammus hyanuary1.6 in (4 cm)17 gal (65 L)73–81°F (23–27°C)
Java loach
Pangio oblonga3.1 in (8 cm)25 gal (95 L)70–79°F (21–26°C)
Javanese ricefish
Oryzias javanicus1.4 in (3.5 cm)11 gal (40 L)75–84°F (24–29°C)
Jellybean tetra
Ladigesia roloffi1.2 in (3 cm)10 gal (37 L)72–81°F (22–27°C)
Julii cory
Corydoras julii2.2 in (5.5 cm)20 gal (75 L)68–79°F (20–26°C)
Kissing prochilodus
Semaprochilodus insignis13.8 in (35 cm)135 gal (510 L)73–84°F (23–29°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)
Lake Kurumoi rainbowfish
Melanotaenia parva3.1 in (8 cm)29 gal (110 L)72–79°F (22–26°C)
Lake Kutubu rainbowfish
Melanotaenia lacustris4.3 in (11 cm)29 gal (110 L)68–77°F (20–25°C)
Lake Tebera rainbowfish
Melanotaenia herbertaxelrodi3.5 in (9 cm)25 gal (95 L)68–79°F (20–26°C)
Lake Wanam rainbowfish
Glossolepis wanamensis3.9 in (10 cm)25 gal (95 L)77–86°F (25–30°C)
Largescale four-eyed fish
Anableps anableps11.8 in (30 cm)70 gal (265 L)77–88°F (25–31°C)
Lemon tetra
Hyphessobrycon pulchripinnis2 in (5 cm)17 gal (65 L)72–82°F (22–28°C)
Leopard cory
Corydoras leopardus2.8 in (7 cm)24 gal (90 L)72–79°F (22–26°C)
Lesser bleeding heart tetra
Hyphessobrycon socolofi2.2 in (5.6 cm)24 gal (90 L)73–82°F (23–28°C)Lined barb
Striuntius lineatus2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)Loach catfish
Aspidoras rochai1.7 in (4.4 cm)15 gal (55 L)70–77°F (21–25°C)Long nosed arched cory
Corydoras narcissus2.8 in (7 cm)30 gal (115 L)73–77°F (23–25°C)
Long-fin tetra
Brycinus longipinnis4.9 in (12.5 cm)50 gal (190 L)72–79°F (22–26°C)
Longfin Bannerfish
Heniochus acuminatus9.8 in (25 cm)127 gal (480 L)75–81°F (24–27°C)Loreto cory
Corydoras loretoensis2 in (5 cm)16 gal (60 L)72–77°F (22–25°C)
Loreto tetra
Hyphessobrycon loretoensis1.4 in (3.5 cm)16 gal (60 L)72–81°F (22–27°C)
Madagascar rainbowfish
Bedotia madagascariensis3.3 in (8.5 cm)45 gal (170 L)73–90°F (23–32°C)
Malabar danio
Devario malabaricus5.1 in (13 cm)48 gal (180 L)64–77°F (18–25°C)
Marbled hatchetfish
Carnegiella strigata1.6 in (4 cm)32 gal (120 L)68–82°F (20–28°C)
Marbled headstander
Abramites hypselonotus5.5 in (14 cm)70 gal (265 L)68–86°F (20–30°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)
Mayan Tetra
Hyphessobrycon compressus1.8 in (4.5 cm)16 gal (60 L)68–79°F (20–26°C)
Medaka
Oryzias latipes1.4 in (3.5 cm)9 gal (35 L)61–72°F (16–22°C)
Melon Barb
Haludaria fasciata2.8 in (7 cm)40 gal (150 L)72–79°F (22–26°C)Micro rasbora
Boraras micros0.6 in (1.5 cm)8 gal (30 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)
Mosaic cory
Corydoras haraldschultzi2.8 in (7 cm)20 gal (75 L)75–82°F (24–28°C)
Moustached danio
Danio dangila5.1 in (13 cm)32 gal (120 L)68–79°F (20–26°C)
Nain dwarf cory
Corydoras nanus1.8 in (4.5 cm)16 gal (60 L)72–79°F (22–26°C)Nano cory
Corydoras gracilis1.4 in (3.5 cm)12 gal (45 L)72–79°F (22–26°C)
Napo cory
Corydoras napoensis2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)Narrow hatchetfish
Triportheus angulatus9.8 in (25 cm)79 gal (300 L)73–82°F (23–28°C)
Neon rainbowfish
Melanotaenia praecox3.1 in (8 cm)29 gal (110 L)73–82°F (23–28°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)Nijssen's cory
Corydoras nijsseni1.8 in (4.5 cm)16 gal (60 L)72–79°F (22–26°C)
Odessa Barb
Pethia padamya1.8 in (4.5 cm)20 gal (75 L)61–77°F (16–25°C)Oiapoque cory
Corydoras oiapoquensis2.2 in (5.5 cm)20 gal (75 L)73–79°F (23–26°C)One-lined Pencilfish
Nannostomus unifasciatus1.6 in (4 cm)17 gal (65 L)73–82°F (23–28°C)
Orange chromide
Etroplus maculatus3.9 in (10 cm)55 gal (210 L)68–82°F (20–28°C)
Orange Hatchet Danio
Laubuka dadiburjori1.2 in (3 cm)13 gal (50 L)68–75°F (20–24°C)
Orange-finned danio
Danio kyathit2 in (5 cm)20 gal (75 L)68–79°F (20–26°C)Ornate cory
Corydoras ornatus2.8 in (7 cm)24 gal (90 L)72–79°F (22–26°C)
Ornate rainbowfish
Rhadinocentrus ornatus2.4 in (6 cm)20 gal (75 L)64–82°F (18–28°C)
Ornate tetra
Hyphessobrycon bentosi1.8 in (4.5 cm)20 gal (75 L)72–82°F (22–28°C)
Pacific blue-eye
Pseudomugil signifer2.8 in (7 cm)25 gal (95 L)68–79°F (20–26°C)
Pacific blue-eye (neon)
Pseudomugil cyanodorsalis1.4 in (3.5 cm)12 gal (45 L)72–82°F (22–28°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)Paska's blue-eye
Pseudomugil paskai1.4 in (3.5 cm)11 gal (40 L)72–79°F (22–26°C)Pastaza cory
Corydoras pastazensis2.8 in (7 cm)22 gal (85 L)72–82°F (22–28°C)
Pearl danio
Danio albolineatus2.4 in (6 cm)18 gal (70 L)61–77°F (16–25°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)
Peru black cory
Corydoras semiaquilus2.6 in (6.5 cm)24 gal (90 L)72–79°F (22–26°C)
Peruvian tetra
Hyphessobrycon peruvianus1.6 in (4 cm)16 gal (60 L)72–81°F (22–27°C)
Phoenix rasbora
Boraras merah0.8 in (2 cm)11 gal (40 L)72–81°F (22–27°C)
Pink cory
Corydoras axelrodi2 in (5 cm)16 gal (60 L)72–79°F (22–26°C)
Pinstripe damba cichlid
Paretroplus menarambo9.8 in (25 cm)95 gal (360 L)79–84°F (26–29°C)
Polka-Dot Loach
Botia kubotai5.9 in (15 cm)42 gal (160 L)72–82°F (22–28°C)Popondetta blue-eye
Pseudomugil connieae2 in (5 cm)11 gal (40 L)75–82°F (24–28°C)Pretty cory
Corydoras pulcher2.6 in (6.5 cm)24 gal (90 L)75–82°F (24–28°C)Prionotos cory
Scleromystax prionotos2.4 in (6 cm)29 gal (110 L)68–77°F (20–25°C)
Purple pencilfish
Nannostomus rubrocaudatus1.2 in (3 cm)20 gal (75 L)75–82°F (24–28°C)Purple tetra
Hyphessobrycon metae1.8 in (4.5 cm)20 gal (75 L)73–82°F (23–28°C)
Pygmy cory
Corydoras pygmaeus1.3 in (3.3 cm)13 gal (50 L)72–79°F (22–26°C)
Pygmy hatchetfish
Carnegiella myersi1 in (2.5 cm)26 gal (100 L)73–79°F (23–26°C)
Pyramid Butterflyfish
Hemitaurichthys polylepis7.1 in (18 cm)124 gal (470 L)75–81°F (24–27°C)Queen danio
Devario regina3.1 in (8 cm)30 gal (115 L)68–79°F (20–26°C)Rainbow emperor tetra
Nematobrycon lacortei2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Rainbow shiner
Notropis chrosomus3.1 in (8 cm)20 gal (75 L)50–72°F (10–22°C)
Red dwarf rasbora
Microrasbora rubescens1.2 in (3 cm)12 gal (45 L)68–77°F (20–25°C)
Red eye tetra
Moenkhausia sanctaefilomenae2.8 in (7 cm)28 gal (105 L)72–79°F (22–26°C)
Red flush tetra
Hemigrammus stictus2.4 in (6 cm)20 gal (75 L)73–81°F (23–27°C)Red neon blue-eye
Pseudomugil luminatus1.4 in (3.5 cm)11 gal (40 L)72–81°F (22–27°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-bellied Piranha
Pygocentrus nattereri12.6 in (32 cm)160 gal (605 L)75–82°F (24–28°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)
Redfin tiger loach
Syncrossus berdmorei9.4 in (24 cm)50 gal (190 L)70–79°F (21–26°C)
Redhook
Myloplus rubripinnis9.8 in (25 cm)70 gal (265 L)73–81°F (23–27°C)
Redline Torpedo Barb
Sahyadria denisonii4.3 in (11 cm)53 gal (200 L)59–77°F (15–25°C)
Redtail loach
Yasuhikotakia modesta9.8 in (25 cm)75 gal (285 L)73–82°F (23–28°C)
Reticulated cory
Corydoras reticulatus2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Reynolds's cory
Corydoras reynoldsi1.4 in (3.5 cm)12 gal (45 L)72–79°F (22–26°C)Robust cory
Corydoras robustus3.1 in (8 cm)40 gal (150 L)72–79°F (22–26°C)
Roman Nose Angelfish
Pterophyllum leopoldi3.9 in (10 cm)30 gal (115 L)72–84°F (22–29°C)
Rosy barb
Pethia conchonius2.8 in (7 cm)24 gal (90 L)61–75°F (16–24°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)
Royal tetra
Inpaichthys kerri1.4 in (3.5 cm)15 gal (55 L)75–81°F (24–27°C)
Ruby tetra
Axelrodia riesei0.8 in (2 cm)12 gal (45 L)73–81°F (23–27°C)
Rummy-nose tetra
Hemigrammus rhodostomus2 in (5 cm)20 gal (75 L)75–81°F (24–27°C)
Rummynose tetra
Petitella bleheri2 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)
Saddle-back Loach
Homaloptera orthogoniata4.3 in (11 cm)45 gal (170 L)68–77°F (20–25°C)Sailfin cory
Scleromystax macropterus3.5 in (9 cm)44 gal (165 L)64–70°F (18–21°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)
Sardine Cichlid
Cyprichromis leptosoma4.3 in (11 cm)45 gal (170 L)75–81°F (24–27°C)
Sawbwa barb
Sawbwa resplendens1.2 in (3 cm)20 gal (75 L)68–75°F (20–24°C)
Schooling Bannerfish
Heniochus diphreutes8.3 in (21 cm)124 gal (470 L)75–81°F (24–27°C)
Schwartz's catfish
Corydoras schwartzi2.8 in (7 cm)20 gal (75 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)
Sebae mono
Monodactylus sebae7.9 in (20 cm)119 gal (450 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)Shadow catfish
Hyalobagrus flavus1.8 in (4.5 cm)13 gal (50 L)70–79°F (21–26°C)
Sharptooth tetra
Micralestes acutidens3.5 in (9 cm)32 gal (120 L)72–79°F (22–26°C)
Siamese algae eater
Crossocheilus oblongus6.3 in (16 cm)37 gal (140 L)68–79°F (20–26°C)Sidestripe rasbora
Rasbora paviana3.1 in (8 cm)32 gal (120 L)72–79°F (22–26°C)
Silver Dollar
Metynnis argenteus5.9 in (15 cm)70 gal (265 L)75–82°F (24–28°C)
Silver Dollar
Metynnis hypsauchen5.5 in (14 cm)70 gal (265 L)75–82°F (24–28°C)
Silver mono
Monodactylus argenteus9.8 in (25 cm)106 gal (400 L)75–82°F (24–28°C)
Silver scat
Selenotoca multifasciata11.8 in (30 cm)119 gal (450 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)
Sixray cory
Aspidoras pauciradiatus1.4 in (3.5 cm)13 gal (50 L)70–81°F (21–27°C)
Skunk cory
Corydoras arcuatus2.2 in (5.5 cm)20 gal (75 L)72–79°F (22–26°C)
Skunk loach
Yasuhikotakia morleti3.3 in (8.5 cm)37 gal (140 L)73–82°F (23–28°C)Slender hemiodus
Hemiodus gracilis7.1 in (18 cm)66 gal (250 L)73–82°F (23–28°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)
Somphongs's rasbora
Trigonostigma somphongsi1 in (2.5 cm)12 gal (45 L)73–81°F (23–27°C)
Southern redbelly dace
Phoxinus erythrogaster3.9 in (10 cm)61 gal (230 L)57–70°F (14–21°C)
Splash tetra
Copella arnoldi2.2 in (5.5 cm)18 gal (70 L)68–82°F (20–28°C)
Spotfin hatchetfish
Thoracocharax stellatus3.5 in (9 cm)26 gal (100 L)73–82°F (23–28°C)
Spotscale Barb
Barbus holotaenia4.7 in (12 cm)32 gal (120 L)75–86°F (24–30°C)
Spotted barb
Barbodes binotatus5.9 in (15 cm)40 gal (150 L)72–79°F (22–26°C)
Spotted blue-eye
Pseudomugil gertrudae1.5 in (3.8 cm)17 gal (65 L)70–82°F (21–28°C)
Spotted cory
Corydoras melanistius2.2 in (5.5 cm)16 gal (60 L)72–79°F (22–26°C)
Spotted cory
Corydoras ambiacus2.6 in (6.5 cm)20 gal (75 L)70–81°F (21–27°C)
Spotted danio
Danio nigrofasciatus1.5 in (3.7 cm)11 gal (40 L)64–79°F (18–26°C)
Spotted hatchetfish
Gasteropelecus maculatus3.5 in (9 cm)26 gal (100 L)73–82°F (23–28°C)
Spotted headstander
Chilodus punctatus3.1 in (8 cm)22 gal (85 L)68–82°F (20–28°C)Spotted metynnis
Metynnis maculatus7.1 in (18 cm)92 gal (350 L)73–82°F (23–28°C)
Spotted pimelodus
Pimelodus pictus5.5 in (14 cm)55 gal (210 L)72–77°F (22–25°C)
Spotted scat
Scatophagus argus11.8 in (30 cm)119 gal (450 L)72–82°F (22–28°C)
Spotted silver dollar
Metynnis lippincottianus5.5 in (14 cm)53 gal (200 L)73–81°F (23–27°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)
Strawberry rasbora
Boraras naevus0.8 in (2 cm)11 gal (40 L)73–81°F (23–27°C)Striped barb
Desmopuntius johorensis4.7 in (12 cm)40 gal (150 L)73–79°F (23–26°C)
Striped eel catfish
Plotosus lineatus12.6 in (32 cm)106 gal (400 L)75–82°F (24–28°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 headstander
Anostomus anostomus7.5 in (19 cm)70 gal (265 L)68–82°F (20–28°C)
Striped mystus
Mystus vittatus8.3 in (21 cm)60 gal (227 L)72–82°F (22–28°C)
Striped panchax
Aplocheilus lineatus4.3 in (11 cm)30 gal (115 L)72–77°F (22–25°C)Sychr's catfish
Corydoras sychri1.7 in (4.3 cm)16 gal (60 L)75–81°F (24–27°C)Tailspot Cory
Corydoras caudimaculatus2 in (5 cm)20 gal (75 L)68–81°F (20–27°C)
Threadfin Cardinalfish
Zoramia leptacantha2.4 in (6 cm)30 gal (114 L)72–79°F (22–26°C)Threadfin glassfish
Gymnochanda filamentosa1.6 in (4 cm)16 gal (60 L)73–81°F (23–27°C)
Threadfin rainbowfish
Iriatherina werneri1.6 in (4 cm)13 gal (50 L)72–86°F (22–30°C)
Three-lined pencilfish
Nannostomus trifasciatus1.3 in (3.3 cm)15 gal (55 L)72–82°F (22–28°C)
Three-spined stickleback
Gasterosteus aculeatus3.1 in (8 cm)20 gal (75 L)50–64°F (10–18°C)
Three-striped African catfish
Pareutropius buffei3.1 in (8 cm)20 gal (75 L)75–82°F (24–28°C)
Threestripe cory
Corydoras trilineatus2.2 in (5.5 cm)16 gal (60 L)72–81°F (22–27°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)
Tinfoil barb
Barbonymus schwanenfeldii13.8 in (35 cm)180 gal (680 L)72–82°F (22–28°C)
True glass catfish
Kryptopterus bicirrhis5.9 in (15 cm)26 gal (100 L)70–79°F (21–26°C)Tucano tetra
Tucanoichthys tucano0.8 in (2 cm)12 gal (45 L)75–82°F (24–28°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)
Vaillant's Chocolate Gourami
Sphaerichthys vaillanti2.2 in (5.5 cm)20 gal (75 L)70–77°F (21–25°C)
Venezuelan orange cory
Corydoras venezuelanus2.4 in (6 cm)20 gal (75 L)68–79°F (20–26°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)
Volcano rasbora
Rasbora vulcanus1.8 in (4.5 cm)15 gal (55 L)73–79°F (23–26°C)
Weitzman's cory
Corydoras weitzmani2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Western rainbowfish
Melanotaenia australis4.7 in (12 cm)30 gal (115 L)72–81°F (22–27°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 Phantom Tetra
Hyphessobrycon roseus0.8 in (2 cm)7 gal (25 L)68–82°F (20–28°C)
Yellow-tailed Congo tetra
Alestopetersius caudalis2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)
Yellowstriped Cardinalfish
Ostorhinchus cyanosoma3.1 in (8 cm)30 gal (114 L)72–79°F (22–26°C)Yoma danio
Danio feegradei2 in (5 cm)20 gal (75 L)72–79°F (22–26°C)
Yoyo loach
Botia almorhae6.3 in (16 cm)42 gal (160 L)66–81°F (19–27°C)
Zebra danio
Danio rerio2 in (5 cm)15 gal (55 L)64–75°F (18–24°C)
Zebra dwarf sucker
Otocinclus cocama1.8 in (4.5 cm)11 gal (40 L)70–77°F (21–25°C)
Zebra loach
Botia striata3.5 in (9 cm)37 gal (140 L)70–79°F (21–26°C)Zipper loach
Paracanthocobitis botia3.9 in (10 cm)29 gal (110 L)70–79°F (21–26°C)
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