Species
Browsing 891 species. Use the filters below to narrow down.
Wine Red Betta
FishBetta coccina
A blood-red peat swamp betta that demands soft, acidic water and its own space.
Wolf Cichlid
FishParachromis dovii
A barrel-chested Central American predator that will eat almost anything it can fit in its mouth.
Wormjawed Mormyrid
FishCampylomormyrus tamandua
A rare African electric fish with a bizarre beak-like snout and a brain to match.
Xingu Freshwater Stingray
FishPotamotrygon leopoldi
A bold black disc covered in white spots. And a venomous spine to match.
Yasha Goby
FishStonogobiops yasha
A tiny reef goby that shares its burrow with a nearly-blind shrimp partner.
Yellowbanded Pipefish
FishDunckerocampus pessuliferus
A reef cleaner that moonlights as one of the more manageable pipefish for beginners.
Yellow Cardinalfish
FishOstorhinchus luteus
A tiny Pacific cardinalfish that finds shelter among sea urchin spines.
Yellow Catfish
FishHemibagrus nemurus
A river giant that grows enormous, acts aggressively, and fears nothing. Including you.
Yellow Devilfish
FishAssessor flavissimus
A tiny reef basslet that casually swims upside down like it's no big deal.
Yellow-fin Flasher-wrasse
FishParacheilinus flavianalis
A small reef wrasse that puts on dazzling courtship displays in group settings.
Yellowhead Jawfish
FishOpistognathus aurifrons
A sand-burrowing fish that hovers upright and broods eggs in its mouth.
Yellowhead Wrasse
FishHalichoeres garnoti
A Western Atlantic wrasse that transforms dramatically as it matures.
Yellowjacket Cichlid
FishParachromis friedrichsthalii
A bold Central American predator that can handle a touch of salt.
Yellowlined Anthias
FishPseudanthias luzonensis
A deep-slope reef dweller that schools beautifully in spacious saltwater tanks.
Yellow Seahorse
FishHippocampus kuda
A wide-ranging Indo-Pacific seahorse that adapts surprisingly well to aquarium life.
Yellow Stingray
FishUrobatis jamaicensis
A venomous reef-flat predator that lures prey with its own body as bait.
Yellowstriped Cardinalfish
FishApogon cyanosoma
A reef-safe schooling cardinalfish that finds safety in numbers and sea urchin spines.
Yellowtail Damselfish
FishChrysiptera parasema
A bold little reef fish with a vivid golden tail and an attitude to match.
Yellowtail Rasbora
FishRasbora tornieri
A surface-skimming schooler with a vivid splash of color on the tail fin.
Yellow Watchman Goby
FishCryptocentrus cinctus
A pint-sized goby that shares its burrow with a nearly blind shrimp partner.
Zebra Acara
FishNannacara adoketa
A dwarf cichlid from blackwater forest streams, built for soft acidic conditions.
Zebra Catfish
FishBrachyplatystoma juruense
A boldly banded Amazonian predator that rests on the bottom by day and hunts by night.
Zebra Dartfish
FishPtereleotris zebra
A sleek, hovering reef fish that vanishes into its burrow at the first sign of trouble.
Zebra Lionfish
FishDendrochirus zebra
A compact lionfish with bold zebra stripes and venomous spines to match its attitude.
Zebra Moray
FishGymnomuraena zebra
A boldly banded moray that trades ferocity for a surprisingly mellow temperament.
Zebra Obliquidens
FishHaplochromis latifasciatus
A critically endangered Lake Kyoga cichlid that breeds readily in home aquariums.
Zebra Spiny Eel
FishMacrognathus zebrinus
A boldly patterned burrower that will eat anything small enough to swallow.