Species
Browsing 331 species. Use the filters below to narrow down.
Reef Chromis
FishChromis retrofasciata
A bite-sized reef chromis that hugs branching corals and minds its own business.
Rock Beauty
FishHolacanthus tricolor
A bold Atlantic angel with dramatically different juvenile and adult coloration.
Rohan's Barb
FishDawkinsia rohani
A lively schooling barb from the hill streams of southern India.
Rosy Loach
FishYunnanilus sp. "Rosy"
A rosy little loach that punches above its weight in personality.
Ryukin Goldfish
FishCarassius auratus var. ryukin
The hump-backed beauty of fancy goldfish keeping, built for cool, calm ponds and tanks.
Saddle Barb
FishBarbodes banksi
A rare Bornean barb with a distinctive wedge marking, seldom seen outside specialist circles.
Sailfin Molly
FishPoecilia latipinna
The male's enormous sail-like dorsal fin makes this livebearer instantly recognizable.
Sailfin Molly
FishPoecilia velifera
The towering dorsal fin of this livebearer is a true showpiece when conditions are right.
Salmacis Cory
FishScleromystax salmacis
A tiny armored catfish from Brazilian ponds, with a venomous sting to respect.
Salmon Catfish
FishNeoarius leptaspis
A mouthbrooding giant catfish that travels from rivers to the sea.
Sarabia Cichlid
FishParaneetroplus bulleri
A hardy Mexican cichlid built for fast currents and long-term companionship.
Savona Stone Loach
FishSchistura savona
A boldly barred Himalayan loach that holds its own in a community tank.
Scarlet Reef Hermit Crab
InvertPaguristes cadenati
A tireless little reef cleaner with bold red legs and a peaceful disposition.
Scribbled Angelfish
FishChaetodontoplus duboulayi
A boldly patterned reef angel that's surprisingly easygoing for its size.
Sebae Anemone
InvertHeteractis crispa
A large, long-tentacled anemone that hosts clownfish but demands strong light and stable water.
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.
Sheepshead Pupfish
FishCyprinodon variegatus
A tough little pupfish that thrives where most fish would struggle to survive.
Shubunkin Goldfish
FishCarassius auratus var. shubunkin
A calico-patterned pond fish built for decades of companionship.
Shy Cory
FishCorydoras gracilis
A tiny, shy cory with a bold arched stripe and a surprising air-breathing trick.
Sidestripe rasbora
FishRasbora paviana
A peaceful, stripe-sided stream fish that thrives in groups and suits most community tanks.
Silver Distichodus
FishDistichodus affinis
A peaceful Congo schooler that surprises you with vivid red fins at adulthood.
Snake-skin Gourami
FishTrichopodus pectoralis
A big, peaceful gourami with wild origins in the flooded forests of Southeast Asia.
Snowflake Blenny
FishSalarias ramosus
A personable reef grazer with bold patterning and surprising air-breathing ability.
Snyder's Barb
FishPuntius snyderi
Taiwan's little-known barb that rivals the golden barb in looks but rarely in fame.
Sohal Tang
FishAcanthurus sohal
A bold Red Sea beauty that rules its territory with zero tolerance for rivals.
Southern Sailfin Catfish
FishPterygoplichthys anisitsi
A prehistoric-looking giant that moonlights as your tank's cleanup crew.
Sparkling Gourami
FishTrichopsis pumila
Tiny gourami that settles disputes by croaking like a miniature frog
Spilotus Cory
FishAspidoras spilotus
A tiny Brazilian cory relative that can gulp air when needed.
Spixi Snail
InvertAsolene spixi
A compact, zebra-striped apple snail that actually eats pest snails.
Spotted Barbel
FishHemibarbus maculatus
A bold, active coolwater fish with a row of dramatic flank spots.
Spotted Danio
FishBrachydanio nigrofasciatus
A rare, peaceful little danio from Myanmar that rewards patient keepers.
Spotted Kuhli Loach
FishPangio muraeniformis
A slithery little bottom-dweller with a bold spotted pattern and a 10-year lifespan.
Spotted Metynnis
FishMetynnis maculatus
A schooling cousin of the piranha that mostly just wants to eat your plants.
Squeaker
FishSynodontis multipunctata
The catfish that tricks cichlids into raising its young for it.