Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 228 species
Affinis blind cusk-eel
Barathronus affinis
Barathronus affinis is a tiny, super-weird deep-sea blind cusk-eel from the western-central Indian Ocean. It is one of those gelatinous, loose-skinned brotula-type fishes that live way down in the dark and are basically never seen alive, so almost everything we know comes from preserved specimens and taxonomic work.
Annandale's zebra sole
Zebrias annandalei
Zebrias annandalei is a small demersal sole from coastal India that inhabits sandy or muddy bottoms and buries for camouflage. It is rarely kept in home aquaria and would require a specialized marine sand-bottom setup and appropriate feeding.
Antarctic dragonfish
Vomeridens infuscipinnis
Deep down around Antarctica, this sleek dragonfish cruises the water column like a little submarine, nearly neutrally buoyant so it can hover above the seafloor. It munches almost exclusively on Antarctic krill and lives in near-freezing water 500-800 m down, so it is a cool species to read about, not one for home tanks.
Arabian demoiselle
Neopomacentrus sindensis
A small lyretail damsel from the Persian Gulf and Arabian Sea, it hangs in loose groups around coral heads, rocks, and even pier pilings picking zooplankton from the flow. Think classic damsel toughness with a slightly milder attitude than the real bruisers, plus subtle yellow tail accents. Males clean a patch, get a mate to lay eggs there, and then stand guard fanning the clutch.
Bandfin scorpionfish
Scorpaenopsis vittapinna
Think tiny ambush predator that vanishes into rubble and coral bits, then flashes a dark band on its pelvic and anal fins when it shifts. It tops out around 3 inches, packs venomous spines, and loves to gulp unsuspecting shrimp and small fish. Super cool to watch once it settles, but it absolutely demands careful handling and smart tankmate choices.
Banggai Cardinalfish
Pterapogon kauderni
Banggai cardinals just sort of hover like little underwater satellites, and the bold black bars with those long, polka-dotted fins look unreal under reef lighting. They're super chill most of the time, but once a pair forms you'll see real "fish drama," and the male will even mouthbrood the babies like a champ.
Barbados vent eelpout
Thermarces pelophilum
This is a deep-sea eelpout that was collected at cold seeps off Barbados - think pitch-black, high-pressure ocean bottom, not an aquarium fish. It tops out around 12.4 cm and basically lives in a world of mud, methane, and seep life, which is a pretty wild niche for a fish.
Barbedwire-tailed skate
Notoraja martinezi
Notoraja martinezi is a deepwater skate from the eastern Pacific (Costa Rica down to Ecuador) that lives way down on soft bottoms. The tail is the giveaway - it is lined with strong, hooked thorns that really do look like barbed wire. This is absolutely not an aquarium fish; it is a cold, high-pressure deep-sea animal with basically no practical home care info because it is not kept in the hobby.
Barred-chin blenny
Rhabdoblennius nitidus
A small intertidal combtooth blenny from the Western Pacific, usually found in surge channels and tide pools exposed to heavy surf. Males court females to spawn in crevices and then guard and fan the adhesive eggs until hatching. It is uncommon in the trade but adapts well to reef-like aquaria with ample rock holes, good flow, and stable marine chemistry.
Barrier reef anemonefish
Amphiprion akindynos
This is one of the cooler Great Barrier Reef clowns - orange-brown with two crisp white bars edged in black and that pale tail. Give it a spot to claim (ideally with an anemone or at least a comfy coral substitute) and it will settle in hard, pair up, and act like the little boss of its corner.
Ben-Tuvia's goby
Didogobius bentuvii
This is a tiny little Mediterranean goby from the Israeli coast that lives down on the bottom over muddy-sand, and it is likely a burrower. In other words, it is a blink-and-you-miss-it kind of fish - super small, demersal, and more about sneaky bottom-dweller vibes than flashy swimming.
Bigeye clingfish
Kopua nuimata
Kopua nuimata is a tiny deepwater clingfish with big eyes and a neat pink-and-orange banded pattern. It lives way down on reefy slopes (roughly 160-337 m), so its "care" is mostly academic - its natural habitat is cold, dark, high-pressure water that we just do not replicate in home aquariums.