Advanced freshwater fish: S
All advanced freshwater fish whose common name starts with S, in alphabetical order. Each card links to its care guide.
39 species
Saddle-back loach
Homaloptera orthogoniata
Freshwater4.3 in (11 cm) · 45 gal (170 L)68–77°F (20–25°C)
Sailfin pim
Leiarius pictus
Freshwater23.6 in (60 cm) · 396 gal (1,500 L)72–79°F (22–26°C)
Sand knifefish
Gymnorhamphichthys rondoni
Freshwater5.9 in (15 cm) · 53 gal (200 L)75–82°F (24–28°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)Schalleri betta
Betta schalleri
Freshwater1.8 in (4.5 cm) · 16 gal (60 L)75–84°F (24–29°C)
Schwartz's catfish
Hoplisoma schwartzi
Freshwater2.8 in (7 cm) · 20 gal (75 L)72–79°F (22–26°C)
Serian Borneo sucker
Gastromyzon scitulus
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)68–77°F (20–25°C)
Serratus cory
Corydoras serratus
Freshwater2.4 in (6 cm) · 20 gal (75 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)
Shelldwelling clown goby
Mugilogobius adeia
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)75–82°F (24–28°C)
Shortfin baby whale
Brienomyrus brachyistius
Freshwater7.9 in (20 cm) · 53 gal (200 L)75–82°F (24–28°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 tiger perch
Datnioides pulcher
FreshwaterBrackish17.7 in (45 cm) · 185 gal (700 L)75–82°F (24–28°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)
Silver arowana
Osteoglossum bicirrhosum
Freshwater39.4 in (100 cm) · 396 gal (1,500 L)75–82°F (24–28°C)
Six-banded distichodus
Distichodus sexfasciatus
Freshwater15.7 in (40 cm) · 143 gal (540 L)72–79°F (22–26°C)
Smallscale hemiodus
Hemiodus microlepis
Freshwater11 in (28 cm) · 159 gal (600 L)75–84°F (24–29°C)Smooth-belly Borneo sucker
Gastromyzon psiloetron
Freshwater3.9 in (10 cm) · 25 gal (95 L)72–79°F (22–26°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)
Spanish toothcarp
Valencia hispanica
Freshwater3 in (7.5 cm) · 20 gal (75 L)54–79°F (12–26°C)
Speckled peacock bass
Cichla temensis
Freshwater39 in (99 cm) · 396 gal (1,500 L)79–84°F (26–29°C)
Spotfin goby cichlid
Tanganicodus irsacae
Freshwater2.8 in (7 cm) · 29 gal (110 L)75–81°F (24–27°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 saratoga
Scleropages leichardti
Freshwater35.4 in (90 cm) · 396 gal (1,500 L)68–82°F (20–28°C)
Starry Borneo sucker
Gastromyzon stellatus
Freshwater2.4 in (6.2 cm) · 20 gal (75 L)68–77°F (20–25°C)
Stinging catfish
Heteropneustes fossilis
Freshwater11.8 in (30 cm) · 65 gal (245 L)70–77°F (21–25°C)
Stracheyi mahseer
Neolissochilus stracheyi
Freshwater23.6 in (60 cm) · 238 gal (900 L)64–79°F (18–26°C)
Streaked prochilodus
Prochilodus lineatus
Freshwater23.6 in (60 cm) · 396 gal (1,500 L)68–79°F (20–26°C)
Sturgeon catfish
Lamontichthys filamentosus
Freshwater6.3 in (16 cm) · 36 gal (135 L)72–86°F (22–30°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)
Sun catfish
Horabagrus brachysoma
Freshwater17.7 in (45 cm) · 170 gal (645 L)73–77°F (23–25°C)
Sunshine pleco (L014)
Scobinancistrus aureatus
Freshwater13.8 in (35 cm) · 106 gal (400 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)
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