Species
Browsing 3,374 species. Use the filters below to narrow down.
Somphongs's Rasbora
FishTrigonostigma somphongsi
One of the rarest aquarium fish alive, rescued from the edge of extinction.
Sorong Rainbowfish
FishMelanotaenia fredericki
A compact Indonesian rainbowfish with vivid color that rewards attentive keepers.
South American Lungfish
FishLepidosiren paradoxa
A living fossil that breathes air, crawls on fins, and outlives most pets.
Southern Cup Coral
CoralCaryophyllia (Caryophyllia) inornata
A solitary cold-water cup coral with quiet charm and real character.
Southern Purple Spotted Gudgeon
FishMogurnda adspersa
A rare Australian native where the male does all the parenting. And most of the bossing around.
Southern Sailfin Catfish
FishPterygoplichthys anisitsi
A prehistoric-looking giant that moonlights as your tank's cleanup crew.
Southern Saratoga
FishScleropages leichardti
Australia's ancient surface predator, built for ambush and best kept alone.
Southern Sennet
FishSphyraena picudilla
A sleek Atlantic predator that schools in impressive numbers near the surface.
Spangled Cichlid
FishAcaronia vultuosa
A compact Orinoco predator that punches above its weight in planted setups.
Spanish Shawl
InvertFlabellina iodinea
A vivid Pacific nudibranch that's as demanding as it is decorative.
Spanish Toothcarp
FishAphanius iberus
A rare Mediterranean killifish worth keeping for conservation as much as curiosity.
Sparkling Eartheater
FishSatanoperca acuticeps
A sociable eartheater with three bold flank blotches, rarely seen in the trade.
Sparkling Gourami
FishTrichopsis pumila
Tiny gourami that settles disputes by croaking like a miniature frog
spearer mantis shrimp
InvertLysiosquillina maculata
A bold, burrow-dwelling predator with a lightning-fast spearing strike.
Speckled Piranha
FishSerrasalmus spilopleura
A solitary, razor-toothed predator best kept one to a tank.
Spiketail Paradise Fish
FishPseudosphromenus cupanus
A shy, small labyrinth fish with secretive bubble-nesting habits worth watching.
Spilotus Cory
FishAspidoras spilotus
A tiny Brazilian cory relative that can gulp air when needed.
Spine Coral
CoralHydnophora bonsai
A compact, ridge-studded coral with an unusual bonsai-like branching form.
Spine Coral
CoralHydnophora exesa
A shape-shifting Indo-Pacific coral with tentacles out around the clock.
Spine Coral
CoralHydnophora grandis
A bold, architecturally distinctive coral with a reputation for territorial aggression.
Spine Coral
CoralHydnophora microconos
A tough, lumpy coral that earns its place on any intermediate reef.
Spine Coral
CoralHydnophora pilosa
A branching reef coral with tentacles out around the clock.
Spine Coral
CoralHydnophora rigida
Branching coral with distinctive ridged spines along every branch.
Spiny Catfish
FishClarotes laticeps
A wide-headed African predator that will outgrow most home aquariums.
Spiny Eel
FishCaecomastacembelus albomaculatus
A rarely seen Tanganyikan spiny eel for the serious rift lake setup.
Spiny Plate Coral
CoralEchinopora lamellosa
Tiered, whorl-shaped plates that can dominate entire shallow reef flats.
Spiny Sea Fan
CoralMuricea elongata
A bold, branching Atlantic sea fan that rewards patient intermediate reefers.
Spiny Sea Fan
CoralMuricea muricata
A branching Atlantic sea fan that thrives in surge and current.
Spiny Stream Pleco
FishHypostomus latifrons
A hardy Paraguayan armored catfish with a surprising ability to breathe air.
Spixi Snail
InvertAsolene spixi
A compact, zebra-striped apple snail that actually eats pest snails.
Splash Tetra
FishCopella arnoldi
The fish that leaps out of water to lay eggs on leaves above the surface.
Splash Tetra
FishCopella carsevennensis
A tiny surface-dweller with one of the most acrobatic spawning rituals in freshwater fishkeeping.
Splendid Killifish
FishAphanius splendens
A rare Turkish killifish relative worth keeping for conservation as much as curiosity.
Splendid Killifish
FishAphyosemion splendopleure
A jewel of West African rainforest streams that rewards patient, dedicated keepers.
Splendid Rainbow Wrasse
FishHalichoeres marginatus
A reef wrasse that shifts from drab to vivid as it matures.
Spotcheek Cichlid
FishThorichthys maculipinnis
A gentle Central American cichlid that surprises with its delicate spotted fins.