Species
Browsing 459 species. Use the filters below to narrow down.
Saulosi Cichlid
FishPseudotropheus saulosi
A Lake Malawi mbuna with dazzling sex-based color differences and fascinating mouthbrooding behavior.
Scopas Tang
FishZebrasoma scopas
A reef grazer that keeps algae in check across vast Indo-Pacific waters.
Sebae Clownfish
FishAmphiprion sebae
A bold, territorial clownfish that pairs best with one specific anemone host.
Sergeant Major
FishAbudefduf saxatilis
Bold reef dweller with a notorious attitude that grows with age.
Seven-spot Archerfish
FishToxotes chatareus
A sharpshooter that hunts insects by spitting jets of water at overhanging branches.
Severum
FishHeros efasciatus
A gentle giant of the Amazon that plays surprisingly well with others.
Severum
FishHeros severus
A large, easygoing cichlid with personality to spare and a surprisingly gentle nature.
Shell-dweller
FishLamprologus meleagris
A tiny shell-brooding cichlid with a surprisingly big attitude.
Shell Dweller
FishLamprologus kungweensis
A tiny Lake Tanganyika shell brooder that digs its own burrow network.
Shell-dwelling Cichlid
FishNeolamprologus brevis
A pint-sized Tanganyikan cichlid that treats a snail shell like a fortress
Short-lined Pyrrhulina
FishPyrrhulina brevis
A compact Amazonian predator with surprising personality for its size.
Six-banded Distichodus
FishDistichodus sexfasciatus
A boldly striped river giant that outgrows most aquariums and most owners' expectations.
Sixbar Panchax
FishEpiplatys sexfasciatus sexfasciatus
A sleek African killifish that hunts from the surface with cool precision.
Six-line Wrasse
FishPseudocheilinus hexataenia
A bold, reef-safe hunter that punches well above its size in attitude.
Skunk clownfish
FishAmphiprion akallopisos
The pale skunk stripe makes this anemonefish one of the most recognizable in the ocean.
Skunk Loach
FishYasuhikotakia morleti
A feisty, burrowing loach with complex social behavior and a bold personality.

Sleeper
FishNimbochromis livingstonii
The Lake Malawi cichlid that fakes its own death to ambush prey.
Slender Betta
FishBetta bellica
A slender peat swamp betta that rewards patient, thoughtful keepers
Slippery Dick
FishHalichoeres bivittatus
A bold, fast-moving wrasse that earns its unforgettable name.
Spiketail Paradise Fish
FishPseudosphromenus cupanus
A shy, small labyrinth fish with secretive bubble-nesting habits worth watching.
Spine Coral
CoralHydnophora grandis
A bold, architecturally distinctive coral with a reputation for territorial aggression.
Splendid Killifish
FishAphyosemion splendopleure
A jewel of West African rainforest streams that rewards patient, dedicated keepers.
Spotfin Goby Cichlid
FishTanganicodus irsacae
A wave-zone specialist that hops across rocks like no other cichlid.
Spotfin Spiny Eel
FishMacrognathus siamensis
A slender, burrowing oddity with a row of false eyes along its back.
Spot-tail
FishBrycinus imberi
A wide-ranging African schooler that brings energy and size to larger tanks.
Spotted leporinus
FishLeporinus maculatus
A swift-water Guianan pencilfish relative with a spotted pattern and real personality.
Spotted Pimelodus
FishPimelodus maculatus
A schooling predatory catfish that needs space, robust tankmates, and careful handling.
Stalsberg's Cichlid
FishAndinoacara stalsbergi
A Pacific-slope cichlid built for hard, alkaline, and even brackish water.
Starry Triggerfish
FishAbalistes stellaris
A surprisingly beginner-friendly triggerfish with bold spots and serious size.
Steindachner's Dwarf Cichlid
FishApistogramma steindachneri
A harem-breeding dwarf cichlid with bold lateral markings from Guiana's rivers.
Striped Dwarf Cichlid
FishPelvicachromis taeniatus
A cave-spawning West African dwarf cichlid with vivid breeding colors and real personality.
Striped Flying Barb
FishEsomus metallicus
A slender, surface-loving schooler with famously long barbels and a feisty streak.
Striped Headstander
FishAnostomus anostomus
A boldly striped South American fish that swims nose-down and plays rough with its own kind.
Striped Hill Trout
FishBarilius barna
A bold, fast-moving hill stream schooler that keeps its tankmates on their toes.
Striped Pike-characin
FishBoulengerella lateristriga
A torpedo-shaped Amazonian predator that schools when young and hunts when older.
Striped Poison-fang Blenny
FishMeiacanthus grammistes
A venomous-fanged blenny that other fish mimic for protection.