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
Brown Fork-Tail Loach
Vaillantella cinnamomea
Vaillantella cinnamomea is a slim little Borneo loach with that cool forked tail and a subtle cinnamon-brown body with a dark eye stripe. It spends most of its time hugging the bottom and weaving through leaf litter and roots, then suddenly darts like a tiny torpedo when food hits the sand. Keep the tank covered tight - these forktails are famous for surprise launches.
Bumblebee goby
Brachygobius doriae
Brachygobius doriae is one of the classic "bumblebee gobies" - tiny, bottom-hugging little characters that perch on rocks and sand and stare at you like they own the place. They're at their best in a calm setup with lots of caves and leaf litter, and they really shine once you get them eating frozen/live foods reliably (they're slow, picky eaters). Also: they're one of the species that gets mislabeled a lot in shops, so it's super common to see them sold under the wrong bumblebee-goby name.
Bumblebee goby (Bumblebee fish)
Brachygobius xanthozonus
This is that tiny little goby with the bold black-and-yellow bands that likes to perch on the bottom and stare back at you like it owns the place. It's happiest in lightly brackish water with lots of little caves and sight-breaks, and it's one of those fish that often refuses flakes-frozen/live meaty foods usually flip the "yes, I will eat" switch.
Bunguran rasbora
Rasbora bunguranensis
Rasbora bunguranensis is a small, schooling Rasbora from Indonesia's Natuna Besar (Bunguran) Island. It stays pretty modest in size (about 8 cm standard length), so it fits that classic Rasbora vibe: active midwater cruising and happiest when you keep a proper group so they feel confident.
Cahual tridentine catfish
Tridentopsis cahuali
Tridentopsis cahuali is one of those truly tiny South American pencil catfishes - think around 2 cm, basically a living sliver. It is from the Paraguay River basin, and its whole vibe is secretive micro-catfish life in warm freshwater. Real talk: there is very little hobby-grade care info out there, so I would treat it like a delicate specialty fish and plan on a species tank and careful observation.
Calabazas shiner
Aztecula calabazas
Aztecula calabazas is a tiny Mexican shiner/minnow from the Rio Panuco basin, basically a little stream fish that spends its whole life in a very small area. Its big claim to fame is how localized and rare it is - this is one of those species thats more of a conservation fish than a normal aquarium fish you see for sale.
Cameroon goby
Wheelerigobius wirtzi
This is a tiny little marine goby from the Gulf of Guinea that hangs out shallow on rocky faces. Its whole vibe is "small, shy, and clingy to cover," so it does best when you give it lots of rockwork and calm tankmates. Not something you see in shops often, but its micro-goby size and habitat style make it a really interesting oddball.
Candystick goby
Vanderhorstia delagoae
This is a shrimp-associated sand goby from the western Indian Ocean and Red Sea area, and it spends its life hovering right by a burrow (usually shared with a snapping shrimp). In a tank it is all about a fine sand bed and feeling secure - when its setup is right, you get that cool watchman-style behavior and constant "standing guard" at the entrance.
Caniscapulus eel goby
Taenioides caniscapulus
This is one of those super-weird mud-burrowing eel gobies (Amblyopinae) with that long, eel-like body and tiny reduced eyes. Its natural world is silty coastal/brackish zones around the Philippines, so it is way more of a "mudflat fish" than a typical community-aquarium goby.
Cantor's croaker
Johnius cantori
Johnius cantori is a tiny little tropical croaker from the eastern Indian Ocean, and its whole claim to fame is how obscure it is - FishBase lists it as known only from the holotype collected in Malaysia. Like other croakers, it lives near the bottom in coastal waters, making it unlikely to be found in aquarium trade.
Caohai stone loach
Eonemachilus caohaiensis
This is a tiny Chinese stone loach from high-elevation Caohai Lake in Guizhou, and it is basically a bottom-hugging little noodle that wants clean, well-oxygenated water. It is not something you will see in the trade much, but if you ever did, I would treat it like other small cool-water nemacheilid loaches: lots of cover, smooth sand, and steady filtration.
Cape Fear shiner
Notropis mekistocholas
This is a tiny, super-local North Carolina shiner from the Cape Fear River basin, and it has a weirdly long, coiled gut for a shiner because it can make a living on a lot of plant-y, detritus-type foods. In the wild it hangs around rocky and sandy pools and runs and often schools up with other minnows, plus it shifts into slower pools to spawn in late spring into summer.