Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 541 species
Glass blue-eye
Kiunga ballochi
This is a tiny little PNG blue-eye with a mostly see-through body and subtle yellow-and-black fin markings that look really slick when a group is sparring and flashing. In the wild its range is extremely small (Upper Fly River system near Kiunga/Tabubil), so its basically a conservation fish as much as an aquarium fish. If you ever run into them, think calm, planted, clean-water setup and a decent-sized group so they feel secure.
Glass catfish
Kryptopterus vitreolus
This is the truly transparent "glass" catfish from Thailand - you can literally see the spine and organs when its happy and settled in. The big trick is keeping them in a proper group and giving them calmer, dimmer conditions; once they feel secure, they cruise around together and look unreal in the water column.
glass knifefish
Distocyclus guchereauae
This is a shy, weakly electric glass knife from the Maroni basin in French Guiana that tops out around a foot long. It cruises with that long undulating anal fin and uses a built-in electric sense to navigate and chat with tankmates. Not something you see in shops often, but super cool if you can give it a big, dim tank and meaty foods after lights out.
Glowlight rasbora
Trigonostigma hengeli
This is the little "orange neon line + tiny black wedge" rasbora that absolutely glows when you keep it over a dark substrate with plants and a bit of tannin-stained water. The best part is how tight they school-get a decent group and they move like one fish, super calming to watch.
Glow Light Tetra
Hemigrammus erythrozonus
The Glowlight Tetra (Hemigrammus erythrozonus) is a small, peaceful South American schooling tetra with a translucent silvery body and a distinctive iridescent orange-red stripe running from the snout to the base of the tail.
Goby
Rhinogobius flavoventris
Tiny lake-dwelling goby from the Philippines with a buttery-yellow belly and a curious, perch-and-dash way of exploring the tank. Males pick a little cave under a rock and fiercely guard the eggs, which is awesome to watch. Give it clean, well-oxygenated water and small meaty foods and it will show loads of personality.
Goeldi's hemiodus
Hemiodus goeldii
Hemiodus goeldii is one of those sleek, torpedo-shaped South American schooling characins that really looks best when you keep a proper group and give them lots of open swimming room. They can be a bit stressy and skittish if cramped or kept singly, but in a calm, oxygen-rich setup they turn into constant, graceful motion - and theyre often mixed up with similar Hemiodus species in the trade.
Goiás pleco
Hypostomus goyazensis
Hypostomus goyazensis is one of those classic armored suckermouth catfish that acts like a little bulldozer on the bottom, wedging into wood and under rocks all day. It is a river fish from Brazil and it can get to about 10 inches, so it is not a cute forever-baby pleco. Give it real floor space, good filtration, and lots of driftwood and it will settle in and do its thing.
Gold-black Borneo sucker
Gastromyzon auronigrus
This is one of the Borneo hillstream loaches that lives plastered to rocks in fast, oxygen-rich streams, using its belly and fins like a suction cup. The wild coloration is a really sharp black base with thin gold bars, so it looks like a little living racing stripe when it scoots around grazing biofilm on stones.
Golden arrow mahseer
Neolissochilus benasi
A smaller mahseer now treated as conspecific with Neolissochilus benasi. Native to northern Viet Nam and adjacent SW China (Yunnan), it reaches about 17–18 cm TL (~7 in) and inhabits clear, fast, well‑oxygenated rivers—so provide strong flow and high dissolved oxygen in a long tank.
Golden Julie
Julidochromis ornatus
Julidochromis ornatus is that sleek little Tanganyikan rock-dweller with the gold body and crisp black stripes that just pops against a pile of limestone. Give it a tight maze of caves and it will pick one like its home base, patrol it, and (once paired up) it is a really fun cave spawner to watch. It is small, but it has big "this is my rock" energy - especially around breeding time.
Golden otocinclus
Otocinclus affinis
Otocinclus affinis is a small South American suckermouth catfish prized for grazing soft algae and biofilm on plants, glass, and décor. It has a slender body with a dark lateral stripe and a pale underside, and it is best kept in groups where it feels secure. Although peaceful, it can be delicate when newly imported and does best in mature, well-oxygenated aquariums with plenty of natural growth to graze.