Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 74 species
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.
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.
Colombian shark catfish
Ariopsis seemanni
This is that slick silver "shark-looking" catfish with the black fins and white tips that cruises around like it owns the place. The big gotcha is it's not a true freshwater community fish long-term-juveniles show up in shops as "freshwater," but as it grows it really wants brackish and eventually full marine conditions, plus a lot of swimming room.
Cuban cusk-eel
Lucifuga subterranea
A blind, cave- and sinkhole-dwelling livebearing brotula (Bythitidae) endemic to Cuba that feeds on small crustaceans (e.g., isopods) in subterranean waters.
Danube delta dwarf goby
Knipowitschia cameliae
This is a tiny little bottom-dwelling goby from a single lagoon system near the Danube Delta in Romania. It stays under about an inch and a half, and the males can show dark barring when in breeding colors. Honestly, it is more of a conservation-interest species than an aquarium fish - it is Critically Endangered and may even be possibly extinct in the wild.
Decorated ponyfish
Nuchequula gerreoides
This is a little Indo-West Pacific ponyfish that hangs around coastal bottoms and wanders into estuaries, so it is a saltwater fish that can handle brackish too. In the wild it hunts tiny crustaceans when young and shifts into a more mixed, grab-what-you-can menu as it grows, which is very "estuary survivor" behavior. Cool little silvery fish, but its need for marine/brackish conditions (and the fact FishBase lists the family as basically not an aquarium fish) makes it a pretty niche, specialist keep.
Dotted gizzard shad
Konosirus punctatus
Konosirus punctatus is a coastal, open-water schooling shad from East Asia that runs in and out of bays and brackish estuaries to breed. It gets fairly big for a "shad" and is built for constant cruising, so its care is much closer to a coolwater baitfish setup than a typical home aquarium community fish.
Dusky Tongue Sole
Paraplagusia sinerama
A tongue sole (family Cynoglossidae) from soft-bottom habitats in northern Australia (Exmouth Gulf, WA to Moreton Bay, QLD) and also New Guinea. It is a bottom-dwelling flatfish associated with soft substrates; aquarium care details (salinity/pH/tankmates) are not well documented in major references.
-1771643191.jpg)
Elongate mudskipper (pointed-tailed goby)
Pseudapocryptes elongatus (syn. Pseudapocryptes lanceolatus)
This is that super-cool "mudskipper-ish" goby that mostly stays in the water, but will park itself in the shallows and periscope its eyes above the surface like it's keeping watch. It's an obligate air-breather from tidal rivers/estuaries, so it really appreciates shallow, brackish setups with soft mud/sand and gentle flow-more of a mangrove vibe than a typical community tank.
Estuarine triplefin
Forsterygion nigripenne
This little triplefin is a bottom-hugging, rock-darting fish from New Zealand estuaries - the kind that wedges itself into cover and then pops out to grab tiny critters. Males get extra interesting in breeding season with enlarged fin tips, and they guard eggs that are stuck down to the nesting site with sticky threads. It is not a typical tropical aquarium fish - think cool, temperate, and brackish-leaning conditions.
Exquisite sand-goby
Favonigobius exquisitus
This little sand-goby is a bottom-hugger from Aussie estuaries that likes to hang out on sandy flats (sometimes right in seagrass). Its whole vibe is "blend in, perch, and pounce" - a neat goby if you are into naturalistic brackish setups and watching tiny ambush-predator behavior.
Eyespot pufferfish (Figure-8 puffer)
Dichotomyctere ocellatus
This is the little "figure-8" puffer with the yellow-green squiggles and the two bold eyespots near the tail-tons of personality in a small body. They're basically snail-hunting machines with a curious, interactive vibe, but they can be spicy with their own kind, so you plan the tank around that.