Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Water Type
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 34 species
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.
Pseudocheilinus hexataenia
The Sixline Wrasse is that nonstop little reef torpedo that weaves through rockwork all day hunting tiny critters. It's awesome for picking at pests like small worms/flatworms, but once it settles in it can get pretty territorial-especially in smaller tanks or with similar-shaped fish.
Pseudocheilinus ocellatus
This is the fish most of us know as the Mystery Wrasse - a shy little reef wrasse with a bright yellow face, faint-to-bold white bars, and that signature eyespot back by the tail. It spends a lot of time weaving through rockwork and popping out to hunt tiny critters, and it can get surprisingly bossy once it feels settled in. Give it caves, a tight lid, and a steady meaty diet and it turns into a really fun, personable showpiece.
Pterapogon kauderni
Banggai cardinals just sort of hover like little underwater satellites, and the bold black bars with those long, polka-dotted fins look unreal under reef lighting. They're super chill most of the time, but once a pair forms you'll see real "fish drama," and the male will even mouthbrood the babies like a champ.
Ptereleotris zebra
Ptereleotris zebra is one of those slick, torpedo-shaped dartfish that likes to hover in the water column, then instantly zip back into a bolt-hole when it gets spooked. In the wild it hangs out on exposed seaward reefs in groups, often in current, and in a tank the big thing is giving it open swim room plus tight cover because it is absolutely a jumper.
Pterois antennata
This is the lionfish with the long "antennae" (those banded tentacles above the eyes) and the ragged, spotty fins that make it look extra dramatic under reef lighting. It'll spend the day tucked under ledges and then cruise out at dusk to ambush shrimp, crabs, and any small fish it can fit in its mouth-also worth remembering it's venomous, so you treat it with respect when you're in the tank.
Quassiremus ascensionis
This is a sand-burying snake eel from the tropical Atlantic that likes to sit with just its head poking out, waiting for food. It gets pretty big (around 70 cm) and needs a real marine setup with a deep, soft sand bed and a tight lid because eels are escape artists.
Quassiremus evionthas
Quassiremus evanidus does not appear to be a valid fish species name in the major databases - what youre probably looking at is Quassiremus evionthas, the Galapagos snake eel. Its a long, sandy-bottom snake eel that spends a lot of time buried with just its head out, cruising sand flats and rubbly reef edges when it feels like moving.
Quassiremus nothochir
This is a big, sand-loving snake eel from the eastern Pacific that spends a lot of its time tucked into the bottom with just the head showing. The cream-and-tan body with those dark-edged reddish saddle marks is the giveaway, and it is built for backing into the sand fast when it feels spooked. Cool animal, but realistically more of a public-aquarium fish than a home-tank project because of size and escape-artist vibes.
Salarias fasciatus
This is the classic "lawnmower" blenny - a little reef perch-fish that spends its day scooting around the rocks, scraping film algae and looking like it has tiny eyebrows. Give it a mature tank with lots of live rock to graze and it will stay busy all day, but if the tank is too clean it can slowly starve unless you supplement greens.
Siganus vulpinus
Siganus vulpinus is that bright yellow "fox-masked" rabbitfish you see cruising around picking at algae all day. It's generally chill with other fish, but it can get a little bossy with similar-shaped grazers-and those dorsal spines are venomous, so nets and hands need to be treated with respect.
Sphaeramia nematoptera
This little cardinalfish looks like it got dressed in a rush-polka-dot back half, bold stripes up front, and that neon-orange tail spot that really pops under reef lights. It's a super chill, "hang in the shadows" kind of fish that likes to hover around rockwork and just cruise calmly all day. If you keep a small group, they'll often tuck in together and make your tank feel instantly more alive without causing any drama.