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
Sea trumpeter
Pelsartia humeralis
Sea trumpeters are Aussie inshore grunters that like hanging around shallow seagrass beds and cruising in schools. They will literally grunt when handled, and the males guard and fan the eggs, which is pretty cool for a coastal marine fish.
Seba's goby
Feia seba
Feia seba is a tiny little marine goby from Papua New Guinea that lives tight to the reef and spends a lot of time perching and darting between cover. Its whole vibe is "blink and you miss it" - super small, super subtle, and really more of a nano reef curiosity than a fish you build a tank around.
Serrated flathead
Rogadius serratus
Rogadius serratus is a sneaky little flathead that basically lives glued to the bottom, blending into sand and rubble like a living leaf-litter camouflage job. It is the kind of fish that does almost nothing until food shows up, then it strikes fast. Super cool look up close, but it is absolutely not a community tank fish.
Shark mackerel
Grammatorcynus bicarinatus
This is a fast, open-water mackerel that cruises reef edges and offshore areas and grows into a serious, one-meter-class fish. It is a saltwater predator built for speed, so its whole vibe is chasing baitfish in the water column, not hanging around rocks like a typical reef tank fish. Awesome animal, but it is absolutely not an aquarium species unless you are talking public-aquarium scale.
Sharpchin flyingfish
Fodiator acutus
Think of this as the ocean’s little glider — a sleek, silvery fish that can burst out of the water and coast on those oversized fins. It cruises near the surface in warm seas and snaps up tiny drifting critters. Super cool to watch in the wild, but it really belongs in the open ocean, not a living room tank.
Sharphead perch
Lepidoperca magna
Sharphead perch is a deepwater basslet from Australia and New Zealand that hangs out on seamount slopes hundreds of meters down. It tops out around 27 cm and would want cool, dim, rockwork-heavy seawater, so it is really a public-aquarium fish rather than a home-tank candidate.
Sharpnose sand eel
Ichthyapus acutirostris
Ichthyapus acutirostris is a finless snake eel (worm eel) that spends a lot of its life buried in sand or mud with just the head out, waiting to grab small prey. Its whole vibe is stealth and hiding, which is super cool to watch in a big, mature marine setup with a deep, fine sand bed. This is not an aquarium-trade fish with a well-established care playbook, so most "care" info out there is guesswork.
Sharpnose sevengill shark
Heptranchias perlo
A deepwater sevengill with big green eyes and a narrow snout, this shark cruises outer shelves picking off squid, crustaceans, and small fishes. It reaches about 1.4 m and looks wild under lights because its eyes glow green. Super cool animal, but strictly a public aquarium species, not a home tank fish.
Sharpnose wrasse
Wetmorella nigropinnata
This is one of those tiny, sneaky reef wrasses that lives in the rockwork - you'll see it poking its little sharp snout into cracks hunting micro-prey. Super peaceful and shy, but once it settles in, its yellow bars and twitchy 'possum wrasse' vibes are seriously addictive to watch.
Shiner anchovy
Encrasicholina intermedia
Encrasicholina intermedia is a tiny, open-water anchovy from the western Indian Ocean that spends its life cruising the coastal shallows in big, nervous schools. In the wild it is basically bite-sized forage fish, constantly picking off plankton and flashing around near the surface - super cool behavior, but it is not really a normal home-aquarium species.
Shortband herring
Jenkinsia stolifera
Jenkinsia stolifera is a tiny, super-flashy little round herring from Florida and the Caribbean that spends its life in tight, nervous schools near the surface. In the wild it is basically living fish confetti - tons of silver, constant motion, always picking at zooplankton - and that "always on the move" vibe is what makes it so cool. It is not really an aquarium species though; most setups cannot provide the huge swimming room, flow, and constant live plankton-style feeding it does best with.
Shorthead sole
Brachirus breviceps
Brachirus breviceps (the shorthead sole) is a little bottom-hugging flatfish from Australia that lives right on soft sand or mud in shallow coastal water. Its whole thing is staying camouflaged and half-buried, so it is more of a "you spot it and smile" fish than a constant swimmer. Also worth knowing up front: there is basically no solid aquarium-care info published specifically for this exact species, so any tank recommendations are best treated as cautious, general "small sole" guidelines.