Species
Browsing 198 species. Use the filters below to narrow down.
Ryukin Goldfish
FishCarassius auratus var. ryukin
The hump-backed beauty of fancy goldfish keeping, built for cool, calm ponds and tanks.
Sailfin Molly
FishPoecilia latipinna
The male's enormous sail-like dorsal fin makes this livebearer instantly recognizable.
Sailfin Molly
FishPoecilia velifera
The towering dorsal fin of this livebearer is a true showpiece when conditions are right.
San Domingo Cichlid
FishThorichthys callolepis
A lesser-known Mexican cichlid from swift, rocky headwaters worth a closer look.
Sarabia Cichlid
FishParaneetroplus bulleri
A hardy Mexican cichlid built for fast currents and long-term companionship.
Scrapermouth Mbuna
FishLabeotropheus trewavasae
A rock-scraping Lake Malawi mbuna with over 40 wild color forms.
Scribbled Angelfish
FishChaetodontoplus duboulayi
A boldly patterned reef angel that's surprisingly easygoing for its size.
Sevenband Butterflyfish
FishChaetodon punctatofasciatus
A boldly patterned reef butterfly that pairs for life and rarely strays far from coral.
Sheepshead Pupfish
FishCyprinodon variegatus
A tough little pupfish that thrives where most fish would struggle to survive.
Shortfin Molly
FishPoecilia mexicana
The wild ancestor of the molly we all know, built for tough conditions.
Shubunkin Goldfish
FishCarassius auratus var. shubunkin
A calico-patterned pond fish built for decades of companionship.
Skunk clownfish
FishAmphiprion akallopisos
The pale skunk stripe makes this anemonefish one of the most recognizable in the ocean.
Sparkling Gourami
FishTrichopsis pumila
Tiny gourami that settles disputes by croaking like a miniature frog
Spiny Stream Pleco
FishHypostomus latifrons
A hardy Paraguayan armored catfish with a surprising ability to breathe air.
Spottail Killifish
FishHeterandria bimaculata
A bold Central American livebearer with attitude to match its size.
Spotted Orange Seam Plec
FishHemiancistrus guahiborum
A territorial Orinoco plec with vivid orange-edged fins and a fascinating ability to breathe air.
Squeaker
FishSynodontis multipunctata
The catfish that tricks cichlids into raising its young for it.
Squeaker Catfish
FishSynodontis waterloti
A rarely seen West African catfish with serrated fins and bold personality.
Stalsberg's Cichlid
FishAndinoacara stalsbergi
A Pacific-slope cichlid built for hard, alkaline, and even brackish water.
Sturgeon Catfish
FishLamontichthys filamentosus
A whip-finned Amazonian catfish whose fin filaments can outgrow its own body.
Suckermouthed Catfish
FishHypostomus punctatus
A hardy Brazilian pleco that earns its keep cleaning up algae and debris.
Sunshine Pleco
FishScobinancistrus aureatus
A bold, deep-bodied Xingu pleco that earns its place with personality to spare.
Swordtail
FishXiphophorus hellerii
The elongated tail sword makes males one of the most recognizable livebearers in the hobby.
Synodontis polli
FishA rarely seen Tanganyikan catfish that pairs well with rift lake cichlids.
Telescope Goldfish
FishCarassius auratus var. telescope
The dramatically bug-eyed fancy goldfish that trades agility for personality.
Texas Cichlid
FishHerichthys cyanoguttatus
The only cichlid native to the United States, and it has the attitude to prove it.
Threadfin Acara
FishAcarichthys heckelii
A cichlid with elaborate burrowing spawning behavior unlike almost anything else in the hobby.
Threadfin Butterflyfish
FishChaetodon auriga
A wide-ranging Indo-Pacific butterfly that grazes reefs, rubble, and everything between.
Threadfin Eartheater
FishGeophagus altifrons
A sand-sifting Amazon cichlid that's gentler than its reputation suggests.
Three-ray Bristlenose Pleco
FishAncistrus triradiatus
A compact, cave-breeding Bristlenose with a surprisingly complex social life.
Threespot Eartheater
FishSatanoperca daemon
A sand-sifting cichlid with bold markings and surprisingly complex social needs.
Tiger Angelfish
FishApolemichthys kingi
A rare South African reef angel with bold, tiger-like patterning.
Tinker's Butterflyfish
FishChaetodon tinkeri
A deep-water Pacific beauty with a bold split between black and white.
Tomato Clownfish
FishAmphiprion ephippium
A bold, deepening red clownfish that loses its white stripes as it matures.
Tomato Clownfish
FishAmphiprion frenatus
A bold, flame-red clownfish that takes no nonsense from tankmates.
Tomini Surgeonfish
FishCtenochaetus tominiensis
A compact reef grazer with vivid fin tips that earns its keep cleaning algae.