Freshwater aquarium fish: S
All freshwater fish whose common name starts with S, in alphabetical order. Each card links to its care guide.
263 species and 11 varieties
Sabanus bumblebee goby
Brachygobius sabanus
Freshwater1.2 in (3 cm) · 11 gal (40 L)75–82°F (24–28°C)
Sabina's dwarf cichlid
Congochromis sabinae
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)73–81°F (23–27°C)
Saddle cichlid
Aequidens tetramerus
Freshwater7.9 in (20 cm) · 53 gal (200 L)75–82°F (24–28°C)
Saddle-back loach
Homaloptera orthogoniata
Freshwater4.3 in (11 cm) · 45 gal (170 L)68–77°F (20–25°C)
Saddled bichir
Polypterus endlicherii
Freshwater25.6 in (65 cm) · 151 gal (570 L)77–84°F (25–29°C)
Saddlespot leporinus
Leporinus maculatus
Freshwater7.1 in (18 cm) · 70 gal (265 L)72–81°F (22–27°C)
Sahul rainbowfish
Melanotaenia sahulensis
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)75–86°F (24–30°C)
Sailfin cory
Scleromystax macropterus
Freshwater3.5 in (9 cm) · 44 gal (165 L)64–70°F (18–21°C)
Sailfin molly
Poecilia latipinna
FreshwaterBrackish4.7 in (12 cm) · 24 gal (90 L)70–79°F (21–26°C)1 variety
Sailfin pim
Leiarius pictus
Freshwater23.6 in (60 cm) · 396 gal (1,500 L)72–79°F (22–26°C)
Sailfin pleco
Pterygoplichthys disjunctivus
Freshwater17.7 in (45 cm) · 100 gal (380 L)73–84°F (23–29°C)
Sailfin red hook
Myleus setiger
Freshwater11 in (28 cm) · 159 gal (600 L)73–82°F (23–28°C)
Sailfin tetra
Crenuchus spilurus
Freshwater2.4 in (6 cm) · 20 gal (75 L)73–82°F (23–28°C)
Salt and pepper cory
Hoplisoma habrosum
Freshwater1.4 in (3.5 cm) · 10 gal (38 L)68–79°F (20–26°C)
Salvin's cichlid
Trichromis salvini
Freshwater5.9 in (15 cm) · 26 gal (100 L)72–79°F (22–26°C)
San Marcos goodeid
Xenotoca doadrioi
Freshwater2 in (5 cm) · 20 gal (75 L)64–79°F (18–26°C)
Sand knifefish
Gymnorhamphichthys rondoni
Freshwater5.9 in (15 cm) · 53 gal (200 L)75–82°F (24–28°C)
Sands cory
Hoplisoma davidsandsi
Freshwater2.4 in (6 cm) · 21 gal (80 L)72–79°F (22–26°C)
Santa Cruz cory
Hoplisoma cruziense
Freshwater2 in (5 cm) · 16 gal (60 L)73–81°F (23–27°C)
Sarabia cichlid
Paraneetroplus bulleri
Freshwater11.8 in (30 cm) · 119 gal (450 L)75–84°F (24–29°C)
Sarare cory
Corydoras sarareensis
Freshwater2 in (5 cm) · 16 gal (60 L)75–82°F (24–28°C)
Sarawak rasbora
Rasbora sarawakensis
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)73–81°F (23–27°C)
Sardine cichlid
Cyprichromis leptosoma
Freshwater4.3 in (11 cm) · 63 gal (240 L)75–81°F (24–27°C)
Saulosi mbuna
Chindongo saulosi
Freshwater3.9 in (10 cm) · 42 gal (160 L)73–81°F (23–27°C)
Sauron silver dollar
Myloplus sauron
Freshwater11.8 in (30 cm) · 159 gal (600 L)79–86°F (26–30°C)
Savona loach
Schistura savona
Freshwater2 in (5 cm) · 20 gal (75 L)64–77°F (18–25°C)
Savory's cichlid
Neolamprologus savoryi
Freshwater3.1 in (8 cm) · 18 gal (70 L)75–81°F (24–27°C)
Sawbwa barb
Sawbwa resplendens
Freshwater1.2 in (3 cm) · 20 gal (75 L)68–75°F (20–24°C)
Scarlet badis
Dario dario
Freshwater0.8 in (2 cm) · 10 gal (38 L)72–79°F (22–26°C)
Scarlet betta
Betta coccina
Freshwater1.6 in (4 cm) · 11 gal (40 L)72–86°F (22–30°C)
Scarlet cactus pleco (L025)
Pseudacanthicus pirarara
Freshwater15.7 in (40 cm) · 119 gal (450 L)79–86°F (26–30°C)
Scarlet goby
Rhinogobius zhoui
Freshwater1.6 in (4 cm) · 12 gal (45 L)61–75°F (16–24°C)
Scarlet livebearer
Micropoecilia picta
FreshwaterBrackish1.6 in (4 cm) · 16 gal (60 L)72–82°F (22–28°C)Schalleri betta
Betta schalleri
Freshwater1.8 in (4.5 cm) · 16 gal (60 L)75–84°F (24–29°C)
Scheel's lampeye
Poropanchax scheeli
Freshwater1.6 in (4 cm) · 14 gal (54 L)72–79°F (22–26°C)
Scherer's hatchetfish
Carnegiella schereri
Freshwater1 in (2.6 cm) · 14 gal (54 L)73–82°F (23–28°C)
Schomburgk's leaffish
Polycentrus schomburgkii
Freshwater3.9 in (10 cm) · 20 gal (75 L)72–82°F (22–28°C)
Schultz's stone loach
Schistura schultzi
Freshwater4.3 in (11 cm) · 29 gal (110 L)72–81°F (22–27°C)
Schwartz's catfish
Hoplisoma schwartzi
Freshwater2.8 in (7 cm) · 20 gal (75 L)72–79°F (22–26°C)
Schwetzi cichlid
Cyclopharynx schwetzi
Freshwater3.9 in (10 cm) · 53 gal (200 L)73–81°F (23–27°C)
Scissortail rasbora
Rasbora trilineata
Freshwater5.5 in (14 cm) · 45 gal (170 L)72–77°F (22–25°C)
Scissortail squeaker
Synodontis soloni
Freshwater6.1 in (15.5 cm) · 66 gal (250 L)73–81°F (23–27°C)
Scrapermouth mbuna
Labeotropheus trewavasae
Freshwater4.7 in (12 cm) · 53 gal (200 L)75–81°F (24–27°C)
Scratched inpa tetra
Inpaichthys parauapiranga
Freshwater1.2 in (3 cm) · 14 gal (54 L)72–81°F (22–27°C)
Sembra rainbowfish
Melanotaenia sembrae
Freshwater4.6 in (11.7 cm) · 42 gal (160 L)75–84°F (24–29°C)
Senegal bichir
Polypterus senegalus
Freshwater13.8 in (35 cm) · 143 gal (540 L)75–82°F (24–28°C)
Senegal kuhli cat
Amphilius rheophilus
Freshwater4.7 in (12 cm) · 30 gal (112 L)70–79°F (21–26°C)
Sentani rainbowfish
Chilatherina sentaniensis
Freshwater4.5 in (11.5 cm) · 42 gal (160 L)77–86°F (25–30°C)
Sepik rainbowfish
Glossolepis multisquamata
Freshwater5.5 in (14 cm) · 55 gal (208 L)79–86°F (26–30°C)
Serian Borneo sucker
Gastromyzon scitulus
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)68–77°F (20–25°C)
Serpae tetra
Hyphessobrycon eques
Freshwater1.8 in (4.5 cm) · 17 gal (65 L)68–82°F (20–28°C)
Serpent loach
Serpenticobitis octozona
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)72–79°F (22–26°C)
Serpentis squeaker
Synodontis serpentis
Freshwater4.9 in (12.5 cm) · 53 gal (200 L)73–81°F (23–27°C)
Serratus cory
Corydoras serratus
Freshwater2.4 in (6 cm) · 20 gal (75 L)77–84°F (25–29°C)
Setna barb
Pethia setnai
Freshwater2 in (5 cm) · 20 gal (75 L)72–81°F (22–27°C)
Seuss's cory
Brochis seussi
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)75–82°F (24–28°C)
Seven-band convict
Amatitlania septemfasciata
Freshwater4.7 in (12 cm) · 42 gal (160 L)75–84°F (24–29°C)
Seven-banded giant gourami
Osphronemus septemfasciatus
Freshwater19.7 in (50 cm) · 264 gal (1,000 L)72–82°F (22–28°C)
Seven-spot archerfish
Toxotes chatareus
FreshwaterBrackish15.7 in (40 cm) · 106 gal (400 L)77–86°F (25–30°C)
Severum
Heros efasciatus
Freshwater11.8 in (30 cm) · 65 gal (245 L)72–84°F (22–29°C)5 varieties
Shacra baril
Opsarius shacra
Freshwater5.5 in (14 cm) · 53 gal (200 L)64–79°F (18–26°C)
Shadow catfish
Hyalobagrus flavus
Freshwater1.8 in (4.5 cm) · 13 gal (50 L)70–79°F (21–26°C)
Sharphead demonfish
Satanoperca acuticeps
Freshwater7.9 in (20 cm) · 119 gal (450 L)77–84°F (25–29°C)
Sharpnose chocolate gourami
Sphaerichthys acrostoma
Freshwater2.8 in (7 cm) · 24 gal (90 L)72–79°F (22–26°C)
Sharptail goby
Oligolepis acutipennis
Freshwater5.9 in (15 cm) · 29 gal (110 L)75–82°F (24–28°C)
Sharptooth tetra
Micralestes acutidens
Freshwater3.5 in (9 cm) · 32 gal (120 L)72–79°F (22–26°C)
Sheepshead minnow
Cyprinodon variegatus
Freshwater2.8 in (7 cm) · 26 gal (100 L)68–81°F (20–27°C)
Sheepshead swordtail
Xiphophorus birchmanni
Freshwater2.8 in (7 cm) · 24 gal (90 L)68–81°F (20–27°C)
Shelford's kuhli loach
Pangio shelfordii
Freshwater3.1 in (8 cm) · 15 gal (55 L)72–81°F (22–27°C)
Shell mbuna
Maylandia lanisticola
Freshwater3.1 in (8 cm) · 29 gal (110 L)75–82°F (24–28°C)
Shell thief cichlid
Lamprologus callipterus
Freshwater5.1 in (13 cm) · 79 gal (300 L)75–81°F (24–27°C)
Shelldwelling clown goby
Mugilogobius adeia
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)75–82°F (24–28°C)
Shining pencilfish
Nannostomus nitidus
Freshwater1.6 in (4 cm) · 14 gal (54 L)75–82°F (24–28°C)
Short-finned tandan
Neosilurus brevidorsalis
Freshwater9.4 in (24 cm) · 79 gal (300 L)70–82°F (21–28°C)
Shortfin baby whale
Brienomyrus brachyistius
Freshwater7.9 in (20 cm) · 53 gal (200 L)75–82°F (24–28°C)
Shortfin molly
Poecilia mexicana
FreshwaterBrackish4.3 in (11 cm) · 32 gal (120 L)72–82°F (22–28°C)
Shovelmouth barb
Chagunius chagunio
Freshwater19.7 in (50 cm) · 317 gal (1,200 L)61–79°F (16–26°C)
Showy hillstream loach
Sewellia speciosa
Freshwater2.6 in (6.5 cm) · 24 gal (90 L)68–75°F (20–24°C)
Siamese algae eater
Crossocheilus oblongus
Freshwater6.3 in (16 cm) · 37 gal (140 L)68–79°F (20–26°C)Siamese flying barb
Laubuka siamensis
Freshwater2.6 in (6.5 cm) · 24 gal (90 L)72–81°F (22–27°C)
Siamese glassfish
Parambassis siamensis
Freshwater2.8 in (7 cm) · 21 gal (80 L)73–82°F (23–28°C)
Siamese tiger perch
Datnioides pulcher
FreshwaterBrackish17.7 in (45 cm) · 185 gal (700 L)75–82°F (24–28°C)
Sichuan golden loach
Sinibotia reevesae
Freshwater4.3 in (11 cm) · 37 gal (140 L)64–77°F (18–25°C)
Sichuan hillstream loach
Sinogastromyzon szechuanensis
Freshwater4.7 in (12 cm) · 29 gal (110 L)57–72°F (14–22°C)
Sickle-fin barb
Puntioplites falcifer
Freshwater15.7 in (40 cm) · 264 gal (1,000 L)73–82°F (23–28°C)
Sicklefin livebearer
Girardinus falcatus
Freshwater2.6 in (6.5 cm) · 11 gal (40 L)68–82°F (20–28°C)
Sidestripe rasbora
Rasbora paviana
Freshwater3.1 in (8 cm) · 32 gal (120 L)72–79°F (22–26°C)
Sieboldii cichlid
Talamancaheros sieboldii
Freshwater11.8 in (30 cm) · 106 gal (400 L)75–84°F (24–29°C)Sierra Leone yellow fin barb
Enteromius leonensis
Freshwater1.6 in (4 cm) · 14 gal (54 L)72–81°F (22–27°C)
Signatus shell dweller
Lamprologus signatus
Freshwater2.2 in (5.5 cm) · 11 gal (40 L)75–81°F (24–27°C)
Signatus wallaceochromis
Wallaceochromis signatus
Freshwater3.7 in (9.5 cm) · 42 gal (160 L)73–81°F (23–27°C)
Silver arowana
Osteoglossum bicirrhosum
Freshwater39.4 in (100 cm) · 396 gal (1,500 L)75–82°F (24–28°C)
Silver distichodus
Distichodus affinis
Freshwater7.9 in (20 cm) · 53 gal (200 L)73–81°F (23–27°C)
Silver dollar
Metynnis argenteus
Freshwater5.9 in (15 cm) · 70 gal (265 L)75–82°F (24–28°C)
Silver flying fox
Crossocheilus reticulatus
Freshwater6.3 in (16 cm) · 53 gal (200 L)64–77°F (18–25°C)
Silver hatchetfish
Gasteropelecus levis
Freshwater1.4 in (3.5 cm) · 30 gal (112 L)73–82°F (23–28°C)
Silver lancer catfish
Mystus bocourti
Freshwater9.4 in (24 cm) · 106 gal (400 L)73–81°F (23–27°C)
Silver maskaheros
Maskaheros argenteus
Freshwater10.6 in (27 cm) · 132 gal (500 L)75–84°F (24–29°C)
Silver saum
Andinoacara stalsbergi
Freshwater7.9 in (20 cm) · 74 gal (280 L)68–79°F (20–26°C)
Silver shark
Balantiocheilos melanopterus
Freshwater15.7 in (40 cm) · 227 gal (860 L)72–82°F (22–28°C)
Silver tiger perch
Datnioides polota
FreshwaterBrackish11.8 in (30 cm) · 79 gal (300 L)75–82°F (24–28°C)
Silverbelly loach
Nemacheilus argyrogaster
Freshwater3.1 in (8 cm) · 24 gal (90 L)72–79°F (22–26°C)
Silverspot eartheater
Geophagus argyrostictus
Freshwater9.4 in (24 cm) · 119 gal (450 L)77–84°F (25–29°C)
Silvertip tetra
Hasemania nana
Freshwater1.6 in (4 cm) · 18 gal (70 L)73–82°F (23–28°C)
Silvia's krib
Pelvicachromis silviae
Freshwater2.4 in (6 cm) · 20 gal (75 L)73–81°F (23–27°C)
Similis lampeye
Procatopus similis
Freshwater2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)
Similis shell dweller
Neolamprologus similis
Freshwater2 in (5 cm) · 20 gal (75 L)75–81°F (24–27°C)
Sims' betta
Betta simorum
Freshwater3.5 in (9 cm) · 20 gal (75 L)73–81°F (23–27°C)
Simulatus cory
Corydoras simulatus
Freshwater2.4 in (6 cm) · 20 gal (75 L)73–81°F (23–27°C)
Simulatus tetra
Hyphessobrycon simulatus
Freshwater1.4 in (3.6 cm) · 15 gal (55 L)72–81°F (22–27°C)
Singa panchax
Epiplatys singa
Freshwater2.4 in (6 cm) · 14 gal (54 L)68–77°F (20–25°C)
Sipaliwini cory
Hoplisoma sipaliwini
Freshwater2.2 in (5.5 cm) · 16 gal (60 L)73–81°F (23–27°C)
Sittaung danio
Danio sysphigmatus
Freshwater3.3 in (8.5 cm) · 29 gal (110 L)72–81°F (22–27°C)
Six-banded barb
Desmopuntius hexazona
Freshwater2.4 in (6 cm) · 24 gal (90 L)73–82°F (23–28°C)
Six-banded distichodus
Distichodus sexfasciatus
Freshwater15.7 in (40 cm) · 143 gal (540 L)72–79°F (22–26°C)
Six-bar lamprologus
Neolamprologus sexfasciatus
Freshwater5.9 in (15 cm) · 79 gal (300 L)75–81°F (24–27°C)
Six-barred panchax
Epiplatys sexfasciatus
Freshwater3.9 in (10 cm) · 20 gal (75 L)72–81°F (22–27°C)
Six-line leporinus
Leporinus sexstriatus
Freshwater3.1 in (8 cm) · 40 gal (150 L)73–82°F (23–28°C)
Sixray cory
Gastrodermus pauciradiatus
Freshwater1.4 in (3.5 cm) · 13 gal (50 L)70–81°F (21–27°C)
Skunk cory
Brochis arcuata
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)72–79°F (22–26°C)
Skunk loach
Yasuhikotakia morleti
Freshwater3.3 in (8.5 cm) · 37 gal (140 L)73–82°F (23–28°C)
Slender betta
Betta bellica
Freshwater3.5 in (9 cm) · 20 gal (75 L)77–86°F (25–30°C)
Slender buffalohead cichlid
Steatocranus tinanti
Freshwater5.1 in (13 cm) · 24 gal (90 L)75–82°F (24–28°C)
Slender catfish
Pimelodella gracilis
Freshwater6.7 in (17 cm) · 40 gal (150 L)72–79°F (22–26°C)
Slender hemiodus
Hemiodus gracilis
Freshwater7.1 in (18 cm) · 66 gal (250 L)73–82°F (23–28°C)
Slender horseface loach
Acantopsis ioa
Freshwater6.3 in (16 cm) · 42 gal (160 L)72–81°F (22–27°C)
Slender rasbora
Rasbora daniconius
Freshwater3.9 in (10 cm) · 32 gal (120 L)72–81°F (22–27°C)
Slim zebra
Maylandia tarakiki
Freshwater5.5 in (14 cm) · 66 gal (250 L)75–82°F (24–28°C)
Small-eyed bee catfish
Akysis microps
Freshwater1.4 in (3.5 cm) · 11 gal (40 L)72–79°F (22–26°C)
Smallmouth lethrinops
Lethrinops microstoma
Freshwater5.7 in (14.5 cm) · 79 gal (300 L)75–81°F (24–27°C)
Smallscale hemiodus
Hemiodus microlepis
Freshwater11 in (28 cm) · 159 gal (600 L)75–84°F (24–29°C)
Smooth buffalo head
Steatocranus glaber
Freshwater2.6 in (6.5 cm) · 29 gal (110 L)73–81°F (23–27°C)Smooth-belly Borneo sucker
Gastromyzon psiloetron
Freshwater3.9 in (10 cm) · 25 gal (95 L)72–79°F (22–26°C)
Smoothcheek eartheater
Gymnogeophagus gymnogenys
Freshwater7.1 in (18 cm) · 79 gal (300 L)61–79°F (16–26°C)
Snail-crusher hap
Chilotilapia rhoadesii
Freshwater8.9 in (22.5 cm) · 119 gal (450 L)75–81°F (24–27°C)
Snakeskin barb
Desmopuntius rhomboocellatus
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)72–82°F (22–28°C)
Snakeskin gourami
Trichopodus pectoralis
Freshwater9.8 in (25 cm) · 61 gal (230 L)72–86°F (22–30°C)
Snowball pleco (L102)
Hypancistrus inspector
Freshwater5.9 in (15 cm) · 63 gal (240 L)75–82°F (24–28°C)
Soda cichlid
Oreochromis alcalicus
Freshwater4.7 in (12 cm) · 53 gal (200 L)79–95°F (26–35°C)
Soft-spined tandan
Neosilurus mollespiculum
Freshwater17.3 in (44 cm) · 106 gal (400 L)70–82°F (21–28°C)
Somphongs's rasbora
Trigonostigma somphongsi
Freshwater1 in (2.5 cm) · 12 gal (45 L)73–81°F (23–27°C)
Sondhi danio
Devario sondhii
Freshwater3.1 in (8 cm) · 24 gal (90 L)68–79°F (20–26°C)
Songkhram ricefish
Oryzias songkhramensis
Freshwater1 in (2.5 cm) · 11 gal (40 L)72–79°F (22–26°C)
South American bumblebee catfish
Microglanis iheringi
Freshwater3.1 in (8 cm) · 20 gal (75 L)72–79°F (22–26°C)
Southern molly
Poecilia vivipara
Freshwater3.1 in (8 cm) · 20 gal (75 L)72–81°F (22–27°C)
Southern platy
Xiphophorus maculatus
Freshwater2.8 in (7 cm) · 10 gal (38 L)68–79°F (20–26°C)4 varieties
Southern redbelly dace
Phoxinus erythrogaster
Freshwater3.9 in (10 cm) · 61 gal (230 L)57–70°F (14–21°C)
Southern tandan
Neosilurus equinus
Freshwater14.6 in (37 cm) · 106 gal (400 L)70–82°F (21–28°C)
Spadetail checkerboard cichlid
Dicrossus maculatus
Freshwater3.5 in (9 cm) · 24 gal (90 L)79–86°F (26–30°C)
Spadetail licorice gourami
Parosphromenus filamentosus
Freshwater1.6 in (4 cm) · 5 gal (20 L)72–81°F (22–27°C)Spangled cichlid
Acaronia vultuosa
Freshwater5.9 in (15 cm) · 79 gal (300 L)75–82°F (24–28°C)
Spanish toothcarp
Valencia hispanica
Freshwater3 in (7.5 cm) · 20 gal (75 L)54–79°F (12–26°C)
Spanner barb
Barbodes lateristriga
Freshwater5.9 in (15 cm) · 74 gal (280 L)72–79°F (22–26°C)
Sparkling loach
Schistura coruscans
Freshwater3.1 in (8 cm) · 24 gal (90 L)68–77°F (20–25°C)
Speckled peacock bass
Cichla temensis
Freshwater39 in (99 cm) · 898 gal (3,400 L)79–84°F (26–29°C)
Spectabilis hap
Buccochromis spectabilis
Freshwater11.8 in (30 cm) · 159 gal (600 L)75–82°F (24–28°C)
Spiketail paradisefish
Pseudosphromenus cupanus
Freshwater2.6 in (6.5 cm) · 12 gal (45 L)68–82°F (20–28°C)
Spiketail platy
Xiphophorus xiphidium
Freshwater2 in (5 cm) · 16 gal (60 L)68–79°F (20–26°C)
Spilo
Champsochromis spilorhynchus
Freshwater15.7 in (40 cm) · 172 gal (650 L)75–81°F (24–27°C)Spilotogena betta
Betta spilotogena
Freshwater2.8 in (7 cm) · 20 gal (75 L)72–81°F (22–27°C)
Spined loach
Cobitis taenia
Freshwater4.3 in (11 cm) · 32 gal (120 L)39–68°F (4–20°C)Spiny cichlid
Rocio spinosissima
Freshwater5.1 in (13 cm) · 53 gal (200 L)75–84°F (24–29°C)
Spiny monster pleco
Pseudacanthicus spinosus
Freshwater11.8 in (30 cm) · 119 gal (450 L)77–84°F (25–29°C)
Spiny squeaker
Synodontis acanthomias
Freshwater19.7 in (50 cm) · 159 gal (600 L)73–81°F (23–27°C)
Splash tetra
Copella arnoldi
Freshwater2.2 in (5.5 cm) · 18 gal (70 L)68–82°F (20–28°C)
Splendens nanochromis
Nanochromis splendens
Freshwater2.2 in (5.5 cm) · 29 gal (110 L)73–81°F (23–27°C)
Splendid killifish
Aphyosemion splendopleure
Freshwater2.2 in (5.5 cm) · 11 gal (40 L)68–77°F (20–25°C)
Splendid lamprologus
Neolamprologus splendens
Freshwater3.1 in (8 cm) · 42 gal (160 L)75–81°F (24–27°C)
Splendid loach
Yasuhikotakia splendida
Freshwater4.7 in (12 cm) · 42 gal (160 L)73–82°F (23–28°C)
Spot-tail curimata
Curimatopsis evelynae
Freshwater1.6 in (4 cm) · 14 gal (54 L)73–82°F (23–28°C)
Spot-tail tetra
Brycinus imberi
Freshwater7.9 in (20 cm) · 65 gal (245 L)72–81°F (22–27°C)
Spotfin goby cichlid
Tanganicodus irsacae
Freshwater2.8 in (7 cm) · 29 gal (110 L)75–81°F (24–27°C)
Spotfin hatchetfish
Thoracocharax stellatus
Freshwater3.5 in (9 cm) · 26 gal (100 L)73–82°F (23–28°C)
Spothead tyrant hap
Tyrannochromis maculiceps
Freshwater11.6 in (29.5 cm) · 159 gal (600 L)75–81°F (24–27°C)
Spotscale barb
Barbus holotaenia
Freshwater4.7 in (12 cm) · 63 gal (240 L)75–86°F (24–30°C)
Spottail loach
Yasuhikotakia caudipunctata
Freshwater4.3 in (11 cm) · 37 gal (140 L)73–82°F (23–28°C)
Spotted algae eater
Gyrinocheilus pennocki
Freshwater11 in (28 cm) · 53 gal (200 L)72–82°F (22–28°C)
Spotted badis
Badis assamensis
Freshwater2.8 in (7 cm) · 21 gal (80 L)64–77°F (18–25°C)
Spotted barb
Barbodes binotatus
Freshwater5.9 in (15 cm) · 63 gal (240 L)72–79°F (22–26°C)
Spotted betta
Betta picta
Freshwater2 in (5 cm) · 16 gal (60 L)72–81°F (22–27°C)
Spotted blue-eye
Pseudomugil gertrudae
Freshwater1.5 in (3.8 cm) · 11 gal (40 L)70–82°F (21–28°C)
Spotted Congo puffer
Tetraodon schoutedeni
Freshwater3.5 in (9 cm) · 29 gal (110 L)75–82°F (24–28°C)
Spotted cory
Brochis ambiacus
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)70–81°F (21–27°C)
Spotted danio
Danio nigrofasciatus
Freshwater1.5 in (3.7 cm) · 15 gal (55 L)64–79°F (18–26°C)
Spotted dwarf giraffe cat
Parauchenoglanis monkei
Freshwater5.9 in (15 cm) · 53 gal (200 L)73–82°F (23–28°C)
Spotted garra
Garra spilota
Freshwater3.5 in (9 cm) · 29 gal (110 L)68–79°F (20–26°C)
Spotted hatchetfish
Gasteropelecus maculatus
Freshwater3.5 in (9 cm) · 26 gal (100 L)73–82°F (23–28°C)
Spotted headstander
Chilodus punctatus
Freshwater3.1 in (8 cm) · 22 gal (85 L)68–82°F (20–28°C)
Spotted hillstream loach
Gastromyzon punctulatus
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)68–75°F (20–24°C)
Spotted hoplo
Megalechis thoracata
Freshwater5.9 in (15 cm) · 40 gal (150 L)64–82°F (18–28°C)
Spotted leporinus
Leporinus granti
Freshwater7.9 in (20 cm) · 70 gal (265 L)72–81°F (22–27°C)
Spotted metynnis
Metynnis maculatus
Freshwater7.1 in (18 cm) · 92 gal (350 L)73–82°F (23–28°C)
Spotted pike characin
Boulengerella maculata
Freshwater13.8 in (35 cm) · 106 gal (400 L)75–82°F (24–28°C)
Spotted pimelodus
Pimelodus pictus
Freshwater5.5 in (14 cm) · 55 gal (210 L)72–77°F (22–25°C)
Spotted pleco
Hypostomus punctatus
Freshwater11.8 in (30 cm) · 79 gal (300 L)72–82°F (22–28°C)
Spotted pyrrhulina
Pyrrhulina spilota
Freshwater2.8 in (7 cm) · 20 gal (75 L)73–81°F (23–27°C)
Spotted raphael catfish
Agamyxis pectinifrons
Freshwater5.9 in (15 cm) · 40 gal (150 L)72–79°F (22–26°C)
Spotted saratoga
Scleropages leichardti
Freshwater35.4 in (90 cm) · 396 gal (1,500 L)68–82°F (20–28°C)
Spotted severum
Heros notatus
Freshwater11.8 in (30 cm) · 58 gal (220 L)72–84°F (22–29°C)
Spotted silver dollar
Metynnis lippincottianus
Freshwater5.5 in (14 cm) · 53 gal (200 L)73–81°F (23–27°C)
Spotted skiffia
Skiffia multipunctata
Freshwater2.4 in (6 cm) · 16 gal (60 L)68–79°F (20–26°C)
Spotted splash tetra
Copella nattereri
Freshwater2 in (5 cm) · 16 gal (60 L)75–82°F (24–28°C)
Spotted tiger pleco
Peckoltia brevis
Freshwater5.1 in (13 cm) · 42 gal (160 L)77–84°F (25–29°C)
Squarehead catfish
Chaca chaca
Freshwater7.9 in (20 cm) · 40 gal (150 L)72–79°F (22–26°C)
Star jewel cichlid
Rubricatochromis stellifer
Freshwater4.7 in (12 cm) · 18 gal (70 L)73–81°F (23–27°C)1 form
Star sapphire cichlid
Placidochromis phenochilus
Freshwater7.9 in (20 cm) · 79 gal (300 L)77–82°F (25–28°C)
Starlight bristlenose pleco (L183)
Ancistrus dolichopterus
Freshwater5.5 in (14 cm) · 63 gal (240 L)79–84°F (26–29°C)
Starry Borneo sucker
Gastromyzon stellatus
Freshwater2.4 in (6.2 cm) · 20 gal (75 L)68–77°F (20–25°C)
Starry night bristlenose pleco
Ancistrus hoplogenys
Freshwater7.1 in (18 cm) · 42 gal (160 L)77–84°F (25–29°C)
Steel blue killifish
Fundulopanchax gardneri
Freshwater2.2 in (5.5 cm) · 21 gal (80 L)70–79°F (21–26°C)
Steindachner's dwarf cichlid
Apistogramma steindachneri
Freshwater3.1 in (8 cm) · 20 gal (75 L)73–82°F (23–28°C)
Sterba's cory
Hoplisoma sterbai
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)75–82°F (24–28°C)
Stigmosa betta
Betta stigmosa
Freshwater2 in (5 cm) · 16 gal (60 L)73–81°F (23–27°C)
Stiktos betta
Betta stiktos
Freshwater2 in (5 cm) · 11 gal (40 L)73–81°F (23–27°C)
Stinging catfish
Heteropneustes fossilis
Freshwater11.8 in (30 cm) · 65 gal (245 L)70–77°F (21–25°C)
Stoliczka's barb
Pethia stoliczkana
Freshwater2 in (5 cm) · 20 gal (75 L)64–79°F (18–26°C)
Stonelifter retroculus
Retroculus lapidifer
Freshwater9.4 in (24 cm) · 119 gal (450 L)79–86°F (26–30°C)
Stormsi cichlid
Orthochromis stormsi
Freshwater3.9 in (10 cm) · 53 gal (200 L)73–81°F (23–27°C)
Stracheyi mahseer
Neolissochilus stracheyi
Freshwater23.6 in (60 cm) · 238 gal (900 L)64–79°F (18–26°C)
Strawberry rasbora
Boraras naevus
Freshwater0.8 in (2 cm) · 11 gal (40 L)73–81°F (23–27°C)
Streaked prochilodus
Prochilodus lineatus
Freshwater23.6 in (60 cm) · 396 gal (1,500 L)68–79°F (20–26°C)
Stripeback buccochromis
Buccochromis nototaenia
Freshwater9.1 in (23 cm) · 159 gal (600 L)75–81°F (24–27°C)
Striped barb
Desmopuntius johorensis
Freshwater4.7 in (12 cm) · 40 gal (150 L)73–79°F (23–26°C)
Striped flying barb
Esomus metallicus
Freshwater3 in (7.5 cm) · 24 gal (90 L)72–79°F (22–26°C)
Striped glass catfish
Kryptopterus macrocephalus
Freshwater3.5 in (9 cm) · 36 gal (135 L)70–79°F (21–26°C)
Striped headstander
Anostomus anostomus
Freshwater7.5 in (19 cm) · 70 gal (265 L)68–82°F (20–28°C)
Striped kribensis
Pelvicachromis taeniatus
Freshwater3.1 in (8 cm) · 19 gal (71 L)75–79°F (24–26°C)
Striped leporinus
Brevidens striatus
Freshwater7.9 in (20 cm) · 53 gal (200 L)72–82°F (22–28°C)
Striped mystus
Mystus vittatus
Freshwater8.3 in (21 cm) · 60 gal (227 L)72–82°F (22–28°C)
Striped nannacara
Nannacara taenia
Freshwater2.4 in (6 cm) · 18 gal (70 L)75–82°F (24–28°C)
Striped panchax
Aplocheilus lineatus
Freshwater4.3 in (11 cm) · 30 gal (115 L)72–77°F (22–25°C)
Striped raphael catfish
Platydoras armatulus
Freshwater8.7 in (22 cm) · 29 gal (110 L)75–86°F (24–30°C)
Striped red-eye puffer
Carinotetraodon salivator
Freshwater2 in (5 cm) · 14 gal (54 L)75–82°F (24–28°C)
Striped sisorid catfish
Glyptothorax schmidti
Freshwater3.9 in (10 cm) · 29 gal (110 L)68–79°F (20–26°C)
Striped spined loach
Cobitis striata
Freshwater3.9 in (10 cm) · 29 gal (110 L)57–72°F (14–22°C)
Striped telmatochromis
Telmatochromis vittatus
Freshwater3.5 in (9 cm) · 20 gal (75 L)75–81°F (24–27°C)
Striped woodcat
Trachelyopterichthys taeniatus
Freshwater5.9 in (15 cm) · 53 gal (200 L)73–82°F (23–28°C)
Stripefin eartheater
Gymnogeophagus rhabdotus
Freshwater5.9 in (15 cm) · 53 gal (200 L)64–79°F (18–26°C)
Stroh's betta
Betta strohi
Freshwater2.8 in (7 cm) · 14 gal (54 L)72–81°F (22–27°C)
Sturgeon catfish
Lamontichthys filamentosus
Freshwater6.3 in (16 cm) · 63 gal (240 L)72–86°F (22–30°C)
Sucker barb
Barbichthys laevis
Freshwater12.2 in (31 cm) · 159 gal (600 L)72–82°F (22–28°C)
Sucker-belly loach
Pseudogastromyzon myersi
Freshwater2.4 in (6 cm) · 20 gal (75 L)64–75°F (18–24°C)
Sucker-head garra
Garra gotyla
Freshwater5.9 in (15 cm) · 42 gal (160 L)64–77°F (18–25°C)
Sulfurhead peacock
Aulonocara maylandi
Freshwater4.3 in (11 cm) · 66 gal (250 L)77–82°F (25–28°C)
Sulphur-head hap
Otopharynx lithobates
Freshwater6.3 in (16 cm) · 53 gal (200 L)75–82°F (24–28°C)
Sultan pleco (L264)
Leporacanthicus joselimai
Freshwater8.7 in (22 cm) · 66 gal (250 L)79–86°F (26–30°C)
Sumatran licorice gourami
Parosphromenus sumatranus
Freshwater1.2 in (3 cm) · 5 gal (20 L)72–81°F (22–27°C)
Sumatran neon loach
Pangio bitaimac
Freshwater3.7 in (9.5 cm) · 14 gal (54 L)73–82°F (23–28°C)
Sumatran rasbora
Rasbora sumatrana
Freshwater5.1 in (13 cm) · 42 gal (160 L)72–81°F (22–27°C)
Sumo loach
Schistura balteata
Freshwater3.1 in (8 cm) · 24 gal (90 L)72–79°F (22–26°C)
Sun catfish
Horabagrus brachysoma
Freshwater17.7 in (45 cm) · 170 gal (645 L)73–77°F (23–25°C)
Sun loach
Yasuhikotakia eos
Freshwater4.3 in (11 cm) · 53 gal (200 L)73–82°F (23–28°C)
Sunset dwarf cichlid
Apistogramma atahualpa
Freshwater2.2 in (5.5 cm) · 16 gal (60 L)75–82°F (24–28°C)
Sunshine peacock cichlid
Aulonocara baenschi
Freshwater4.3 in (11 cm) · 63 gal (240 L)77–84°F (25–29°C)
Sunshine pleco (L014)
Scobinancistrus aureatus
Freshwater13.8 in (35 cm) · 106 gal (400 L)79–86°F (26–30°C)
Suriname eartheater
Geophagus surinamensis
Freshwater8.3 in (21 cm) · 119 gal (450 L)77–84°F (25–29°C)
Susi rainbowfish
Melanotaenia susii
Freshwater5.5 in (14 cm) · 42 gal (160 L)75–84°F (24–29°C)
Sven's pike cichlid
Crenicichla sveni
Freshwater9.8 in (25 cm) · 119 gal (450 L)75–82°F (24–28°C)
Sveni eartheater
Geophagus sveni
Freshwater7.9 in (20 cm) · 119 gal (450 L)77–84°F (25–29°C)
Swamp badis
Badis laspiophilus
Freshwater1 in (2.5 cm) · 5 gal (20 L)64–75°F (18–24°C)
Swamp blue-eye
Pseudomugil paludicola
Freshwater1.4 in (3.5 cm) · 11 gal (40 L)79–86°F (26–30°C)
Swamp licorice gourami
Parosphromenus paludicola
Freshwater1.5 in (3.7 cm) · 5 gal (20 L)72–81°F (22–27°C)
Sychr's catfish
Brochis sychri
Freshwater1.7 in (4.3 cm) · 16 gal (60 L)75–81°F (24–27°C)
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