Species
Browsing 1,092 species. Use the filters below to narrow down.
Volcano Rasbora
FishRasbora vulcanus
A tiny, peaceful Sumatran schooler that earns its volcanic trade name.
Walking Dendro
CoralHeteropsammia cochlea
The coral that walks across the seafloor, guided by a live-in worm.
Warty Corallimorph
CoralRhodactis osculifera
A tough, low-light Caribbean corallimorph that thrives where many corals struggle.
Wasp Catfish
FishAkysis vespa
A tiny banded catfish from Myanmar's fast streams, built like a wasp.
Weakfish
FishPetrocephalus bovei bovei
A nocturnal African weakfish that retreats into caves by day and hunts by night.
Weather Loach
FishParamisgurnus dabryanus
The tough, peaceful bottom-dweller hiding in plain sight as a different species.
Weedy Sea Dragon
FishPhyllopteryx taeniolatus
Australia's leafy coastal phantom, camouflaged beyond belief.
Wellington's Solitary Coral
CoralRhizopsammia wellingtoni
A rare Galapagos solitary coral that thrives in lower light conditions.
Western Ghat Leach
FishBhavania australis
A wild-stream crawler from endangered Indian rivers, rarely seen outside its homeland.
Western Rainbowfish
FishMelanotaenia australis
Australia's most widespread rainbowfish, and well worth the wait to color up.
Whalesucker
FishRemora australis
The open-ocean hitchhiker that bonds with whales and baffles hobbyists.
White Cloud Mountain Minnow
FishTanichthys albonubes
A cold-tolerant schooling fish that practically takes care of itself.
White Disc Soft Coral
CoralDiscophyton rudyi
A forgiving soft coral bringing pale, disc-shaped elegance to Pacific-inspired reef tanks.
White-edged Betta
FishBetta albimarginata
A tiny, peaceful mouthbrooding betta from Borneo's blackwater forest streams.
Whitelined Goby
FishAmblygobius albimaculatus
A sand-sifting goby that pairs for life and engineers its own burrow.
White Star Tetra
FishAxelrodia stigmatias
A tiny Amazonian shoaler that rewards patient keepers with lively social behavior.
White stripe cory
FishCorydoras albolineatus
A white-striped Bolivian cory that occasionally gulps air at the surface.
Whitetail Bristletooth
FishCtenochaetus flavicauda
A compact reef-grazer with a bright white tail that stands out on the rock face.
Wood-cat Catfish
FishAuchenipterichthys thoracatus
A secretive Amazonian catfish that wedges itself into hiding spots with specialized fins.
Wrinkle Coral
CoralCoscinaraea monile
A low-profile reef builder with finely textured, wrinkled surfaces across its domes.
X-Ray Tetra
FishPristella maxillaris
The see-through tetra whose bold dorsal fin pattern makes a school unforgettable.
Yasha Goby
FishStonogobiops yasha
A tiny reef goby that shares its burrow with a nearly-blind shrimp partner.
Yellow-banded Moenkhausia
FishMoenkhausia sanctaefilomenae
A lively, adaptable tetra that rewards you for keeping it in a proper group.
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 Coris Wrasse
FishHalichoeres chrysus
A cheerful, all-yellow wrasse that's as easygoing as it looks.
Yellow Eyed Silver Barb
FishHypsibarbus pierrei
A large, river-bred barb with bold scale patterning and easy care.
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.
Yellowlined Anthias
FishPseudanthias luzonensis
A deep-slope reef dweller that schools beautifully in spacious saltwater tanks.
Yellow Pencil Coral
CoralMadracis auretenra
A slender, branching Atlantic coral that glows with warm golden hues.
Yellow Seahorse
FishHippocampus kuda
A wide-ranging Indo-Pacific seahorse that adapts surprisingly well to aquarium life.
Yellowstriped Cardinalfish
FishApogon cyanosoma
A reef-safe schooling cardinalfish that finds safety in numbers and sea urchin spines.
Yellowstriped Fairy Basslet
FishPseudanthias tuka
A reef-slope schooler draped in purple and yellow, surprisingly manageable in a large system.
Yellow-tailed African Characin
FishAlestopetersius caudalis
A Congo schooling fish where rival males put on their best show