Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 555 species
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.
Beach silverside
Atherinella blackburni
This is a little coastal silverside that cruises the shallows in loose groups and flashes like a tiny chrome dart when the light hits it right. In the wild it hangs around beaches, estuaries, and lagoons, picking at small drifting foods in the surf zone. It is cool, but its real "gotcha" is that it is an open-water, salt-tolerant schooling fish that does best in bigger, well-oxygenated setups rather than a typical planted community tank.
Bearded puffer
Pao barbatus
This is a chunky little Mekong River puffer that gets a cool "bearded" look from the dark spotting around the lips. It is one of those puffers that acts like a tiny water-dog - always watching you, always investigating, and always ready to crunch something shelled. Not a great community fish though, because puffers are basically curious biters with a beak.
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.
Betta
Betta splendens
Betta fish, also known as Siamese fighting fish, are popular for their striking colors and flowing fins. They are known for their territorial nature, especially males, which can display aggressive behavior towards each other.
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.
Bigfin shrimpgoby
Vanderhorstia macropteryx
This is one of those classic sand-dwelling shrimp gobies that posts up at a burrow entrance and keeps watch while its pistol shrimp roommate does the digging. In the tank its vibe is basically "little sentinel" - calm, bottom-oriented, and super fun to observe if you give it sand and a secure lid (they can jump).
Bishop toothcarp
Brachyrhaphis episcopi
This is a tiny Panamanian livebearer that does best when you treat it more like a shy wild fish than a fancy guppy-lots of cover, calm vibes, and really clean water. The fun part is watching the males posture and spar while the females cruise around dropping fully-formed fry about once a month.
Black dwarfgoby
Eviota vader
Eviota vader is a truly tiny, purplish-black little reef goby from Papua New Guinea that was only described in 2025. It was named after Darth Vader because the whole fish is basically dark purple-black, which is wild for an Eviota. Its size is the big story here - at barely over 1 cm, its main challenge in aquariums would be making sure it actually gets enough to eat.
Black loach
Eonemachilus niger
This is a tiny, deep-velvet-black stone loach from Yunnan, China, with the odd detail that the tail fin is not black like the rest of the fish. Its wild range is extremely limited, so its aquarium presence is basically nil - this is more of a conservation-interest species than something you will actually see for sale.
Black morpho tetra
Poecilocharax weitzmani
Poecilocharax weitzmani is one of those tiny blackwater oddballs that acts more like a little darter than a typical tetra - it hangs low, darts between cover, and the males can get pretty showy with fin-flares. The really cool part is they are cave breeders with male brood care, which is not what most people expect from a small characin. Give them very soft, acidic, super-clean water and lots of leaf litter and hidey holes, and they settle in and start showing their best colors.
Black Neon Tetra
Hyphessobrycon herbertaxelrodi
Black neons are one of those little tetras that look kinda understated until the light hits them-then that bright stripe pops and they shimmer when the school turns together. They're super chill, always cruising mid-water, and they make a tank feel "alive" without being hectic. If you keep a nice group, they get bolder and you'll see way more of their personality.