Species
Browsing 723 species. Use the filters below to narrow down.
Rockmover
FishNovaculichthys taeniourus
A reef demolition crew in fish form, juvenile and adult look like different species.
Roloff's Krib
FishPelvicachromis roloffi
A cave-spawning West African dwarf cichlid with strong pair bonds and subtle charm.
Roseline Shark
FishSahyadria denisonii
The endangered Indian torpedo barb with a vivid red-and-black racing stripe
Rosy Barb
FishPethia conchonius
Hardy, colorful schooling barb that thrives across a wide range of conditions.
Rosy Basketmouth
FishCaquetaia spectabilis
A bold Amazonian cichlid that pairs for life and defends its brood fiercely.
Rotpunct Apisto
FishApistogramma alacrina
A pint-sized Colombian dwarf cichlid with a uniquely spotted pectoral fin base.
Round-tailed Paradise Fish
FishMacropodus ocellatus
A cold-hardy labyrinth fish that stays active even under ice.
Rusty Angelfish
FishCentropyge ferrugata
A compact, reef-dwelling dwarf angel with rich rusty coloring and bold personality.
Sabah Dottyback
FishManonichthys alleni
A cave-dwelling Pacific dottyback with a fondness for living inside tubular sponges.
Sabanus Bumblebee Goby
FishBrachygobius sabanus
A tiny brackish goby with bold banding and a big territorial attitude.
sailfin tang
FishZebrasoma veliferum
A reef tang that unfurls its fins like a sail when threatened or showing off.
Sailfin Tang
FishZebrasoma velifer
Those enormous fins aren't just for show. They mean business.
Sailfin Tetra
FishCrenuchus spilurus
A solitary little predator with theatrical fin displays and devoted fathering instincts.
Sakaramy Killifish
FishPachypanchax sakaramyi
A montane Malagasy killifish that's gentler than most of its relatives
Sally Lightfoot crab
InvertPercnon gibbesi
A lightning-fast reef crab that never seems to hold still for long.
Salmon Catfish
FishNeoarius leptaspis
A mouthbrooding giant catfish that travels from rivers to the sea.
Salvin's Cichlid
FishCichlasoma salvini
Colorful, compact, and surprisingly ferocious. A Central American cichlid with real attitude.
Salween Barb
FishHampala salweenensis
A rare Salween barb that hunts by suction and needs to be kept in groups.
Sambia
FishNeolamprologus sexfasciatus
A boldly striped Tanganyikan predator that demands respect from tankmates and keeper alike.
San Domingo Cichlid
FishThorichthys callolepis
A lesser-known Mexican cichlid from swift, rocky headwaters worth a closer look.
Sarabia Cichlid
FishParaneetroplus bulleri
A hardy Mexican cichlid built for fast currents and long-term companionship.
Sardine Cichlid
FishCyprichromis leptosoma
A mid-water schooling cichlid from Tanganyika with fascinating lekking behavior.
Sargassum Triggerfish
FishXanthichthys ringens
A long-lived Atlantic trigger that spends its youth adrift in floating seaweed.
Saulosi Cichlid
FishPseudotropheus saulosi
A Lake Malawi mbuna with dazzling sex-based color differences and fascinating mouthbrooding behavior.
Scale-eating Pupfish
FishCyprinodon desquamator
A tiny Bahamian pupfish that makes its living stealing scales from other fish.
Scopas Tang
FishZebrasoma scopas
A reef grazer that keeps algae in check across vast Indo-Pacific waters.
Scribbled Angelfish
FishChaetodontoplus duboulayi
A boldly patterned reef angel that's surprisingly easygoing for its size.
Sebae Clownfish
FishAmphiprion sebae
A bold, territorial clownfish that pairs best with one specific anemone host.
Sergeant Major
FishAbudefduf saxatilis
Bold reef dweller with a notorious attitude that grows with age.
Seven-spot Archerfish
FishToxotes chatareus
A sharpshooter that hunts insects by spitting jets of water at overhanging branches.
Severum
FishHeros efasciatus
A gentle giant of the Amazon that plays surprisingly well with others.
Severum
FishHeros severus
A large, easygoing cichlid with personality to spare and a surprisingly gentle nature.
Shacra Baril
FishBarilius shacra
A bold, fast-moving river cyprinid that needs equally robust tankmates to thrive.
Shark Minnow
FishLuciosoma bleekeri
A fast-moving surface predator that needs serious space to thrive.
Sheep Pacu
FishAcnodon normani
A compact pacu with tiger stripes and a bad habit of snacking on scales.
Shell-dweller
FishLamprologus meleagris
A tiny shell-brooding cichlid with a surprisingly big attitude.