Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 528 species
Gubal goatfish
Upeneus gubal
Upeneus gubal is a small Red Sea goatfish described in 2019 from the southern Gulf of Suez. It cruises sandy/muddy bottoms and uses its chin barbels to locate benthic invertebrate prey. With a reported maximum of 8.7 cm SL, it is smaller than most goatfishes, but still requires a large, long tank and fine sand to accommodate constant foraging behavior.
Gulf hake
Urophycis cirrata
Urophycis cirrata is a deep-water phycid hake from the western Atlantic, and it has that classic "cod-family" look with a little chin barbel and long, feeler-like pelvic rays. Its whole vibe is muddy-slope bottom dweller, cruising around in colder water way deeper than any normal home aquarium is built to handle.
Günther's karanteen
Crenidens macracanthus
A small marine sparid (seabream) from the Indian Ocean (FishBase: eastern Indian Ocean-India; also recorded from Pakistan) with distinctive incisor-like teeth; references note its diet is mainly algae and its dentition appears specialized for grazing. Rarely encountered in the aquarium trade; most information is from ichthyological sources rather than hobby care guides.
Guppy conger
Rhynchoconger guppyi
This is a deepwater Caribbean conger eel with a long needle-like tail, black-edged fins, and a big pointy snout that gives it a serious hunter vibe. It cruises soft bottoms 100-450 m down picking off crustaceans and small fish. Super impressive creature, but it grows close to a meter and really is not a home aquarium candidate.
Hairy blenny
Labrisomus nuchipinnis
This is a chunky little rock-dweller that basically lives in holes and crevices and zips to the next hideout when it gets spooked. Males can show reddish color on the lower head and belly, and they are territorial spawners with the male guarding the eggs. Super cool fish to watch if you like cryptic, perch-and-pounce hunters more than open-water swimmers.
Halfbelt wriggler
Xenisthmus semicinctus
Xenisthmus semicinctus is a tiny little reef-dweller (barely 2 cm) from the Rowley Shoals off Western Australia. It is one of those blink-and-you-miss-it benthic fishes that lives right down on shallow coral reef habitat, kind of wriggling and hugging cover instead of swimming out in the open. Super cool fish biologically, but its so small and specialized that it is basically never seen in the normal aquarium trade.
Harelip cusk
Ophidion lagochila
This is a tiny Caribbean cusk-eel that sticks to sandy bottoms around reefs from Bermuda and the Bahamas down to Venezuela. It tops out under 3 inches and spends a lot of time tucked into the sand, darting out for tiny crustaceans and worms. Super cool little oddball, but you almost never see it for sale and it really needs a mature, stable marine setup with a decent sand bed.
Harlequin filefish
Oxymonacanthus longirostris
This is that super-cool orange-spotted, long-snouted filefish that hangs tight in branching Acropora like it's part of the coral. In the wild it's basically an Acropora-polyp specialist and usually lives in pairs, which is exactly why it's so tricky in home aquariums unless you're ready for the feeding challenge.
Hawaiian bandfish
Owstonia hawaiiensis
Owstonia hawaiiensis is a deepwater Hawaiian bandfish - a slim, rosy-red slope fish that hangs close to the bottom in the dark, cooler zones most divers never see. It is not really an aquarium fish in the normal sense, since it comes from deep water and would need specialized coldwater/deepwater life support to have a shot long-term.
Hawaiian cleaner wrasse
Labroides phthirophagus
This is the little reef "dentist" from Hawaii that sets up a cleaning station and does that classic flitty dance to invite other fish in. Its whole life revolves around picking parasites (plus mucus/scales) off clients, which is fascinating to watch but also exactly why it so often wastes away in typical home aquariums.
Hawaiian surf sardine
Iso hawaiiensis
Iso hawaiiensis is a tiny surf-zone silverside that lives right in the splashy, wave-battered edge of rocky headlands and reefs. Its whole vibe is fast, nervous, and built for rough water, so it is way more of a cool natural-history fish than a typical home-aquarium resident.
Hewett's coris
Coris hewetti
Coris hewetti is a smaller Coris wrasse that (as far as records show) is only known from the Marquesas Islands in the eastern central Pacific. It cruises mixed sand-and-rubble areas picking at tiny bottom critters, and the males do a pretty wild little courtship display where they flare fins and even shift color.