The Americas
From the Amazon's blackwater basins to Caribbean reefs — the Americas hold the most popular freshwater biotopes and a wealth of Atlantic and Pacific saltwater life.
1,013 species
Sub-regions
Six-eyed Tetra
FishPhenacogaster tegatus
The tiny 'six-eyed tetra' from Paraguay with a trick spot pattern.
Six-ray Star Coral
CoralMadracis senaria
A deep-water Caribbean encrusting coral with a precise, six-pointed corallite architecture.
Skunk Corydoras
FishCorydoras arcuatus
A boldly striped little catfish that breathes air and moves in cheerful gangs.
Slender Hemiodus
FishHemiodus gracilis
A fast-moving Amazon schooler that thrives in large, active biotope communities.
Slender Piranha
FishSerrasalmus elongatus
A sleek, solitary predator that's one of the easiest piranhas to identify correctly.
Slimy Sea Plume
CoralAntillogorgia americana
A flowing Caribbean sea fan that brings wild reef movement to the tank.
Slobbering Catfish
FishBrachyplatystoma platynemum
A rarely-seen Amazonian giant named for its unusually thick, drooping barbels.
Smudge spot cory
FishCorydoras similis
A small armored catfish that breathes air and thrives in a lively group.
Snowball Pleco
FishBaryancistrus sp. "L142"
A boldly spotted Amazonian pleco that gets feisty as it grows up.
Snowball Pleco
FishHypancistrus inspector
Bold spotted pleco from Venezuelan rapids, compact enough for a mid-size tank.
Snowflake Coral
CoralCarijoa riisei
A soft, branching coral that frosts live rock with white, feathery polyps.
Solitary Disk Coral
CoralScolymia wellsii
A bold, single-polyp coral that rewards patient feeding with vivid growth.
South American Lungfish
FishLepidosiren paradoxa
A living fossil that breathes air, crawls on fins, and outlives most pets.
Southern Sailfin Catfish
FishPterygoplichthys anisitsi
A prehistoric-looking giant that moonlights as your tank's cleanup crew.
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.
Sparkling Eartheater
FishSatanoperca acuticeps
A sociable eartheater with three bold flank blotches, rarely seen in the trade.
Speckled Piranha
FishSerrasalmus spilopleura
A solitary, razor-toothed predator best kept one to a tank.
Spilotus Cory
FishAspidoras spilotus
A tiny Brazilian cory relative that can gulp air when needed.
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.
Spotcheek Cichlid
FishThorichthys maculipinnis
A gentle Central American cichlid that surprises with its delicate spotted fins.
Spottail Killifish
FishHeterandria bimaculata
A bold Central American livebearer with attitude to match its size.
Spotted Cichlid
FishAustraloheros facetus
A tough South American cichlid with a big personality and surprising cold tolerance.
Spotted Cory
FishCorydoras brevirostris
A tiny armored catfish with a surprisingly long lifespan and a talent for breathing air.
Spotted Hatchetfish
FishGasteropelecus levis
A surface-hugging jumper with a deep keel and surprisingly peaceful nature.
Spotted Hawkfish
FishCirrhitichthys oxycephalus
A bold little percher that claims coral real estate and rarely budges.
Spotted Hoplo
FishMegalechis thoracata
A tough, bubble-nesting catfish that breathes air and shrugs off rough conditions.
Spotted leporinus
FishLeporinus maculatus
A swift-water Guianan pencilfish relative with a spotted pattern and real personality.
Spotted Metynnis
FishMetynnis maculatus
A schooling cousin of the piranha that mostly just wants to eat your plants.
Spotted Orange Seam Plec
FishHemiancistrus guahiborum
A territorial Orinoco plec with vivid orange-edged fins and a fascinating ability to breathe air.