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
Acara cichlid
FishAequidens rondoni
A compact Amazon cichlid with a big personality and surprising longevity.
Acary Avion
FishAcanthicus adonis
A spotted pleco that outgrows almost every home aquarium it enters.
Achilles Tang
FishAcanthurus achilles
A bold, reef-grazing surgeon with a vivid orange tail patch and a fiery attitude toward rivals.
Acre Corydoras
FishCorydoras acrensis
A little-known armored catfish from Amazonia that breathes air when it needs to.
Adolfoi's Catfish
FishBrachyrhamdia rambarrani
A Corydoras mimic from blackwater Brazil, rarely seen but worth the search.
Adolf's Cory
FishCorydoras adolfoi
A boldly patterned Rio Negro cory that thrives in lively groups.
African Blackchin Tilapia
FishSarotherodon melanotheron
A hardy West African mouthbreeder that thrives in brackish and freshwater setups alike.
Agassiz's Corydoras
FishCorydoras agassizii
A peaceful armored catfish with a notoriously tricky identity and a 20-year lifespan.
Agassiz's Dwarf Cichlid
FishApistogramma agassizii
A jewel of the Amazon riverbed with big cichlid personality in a small package.
Aimara
FishHoplerythrinus unitaeniatus
An ancient air-breathing predator that can walk to find new water.
Alaska Stony Coral
CoralCaryophyllia (Caryophyllia) alaskensis
A solitary cold-water coral bringing deep Pacific character to dedicated reef tanks.
Albater Cory
FishAspidoras albater
A tiny Brazilian catfish with a surprisingly long lifespan and an unusual breathing trick.
Alligator Gar
FishAtractosteus spatula
One of the world's largest freshwater fish, and a lifelong commitment.
Amazon Frogbit
PlantLimnobium laevigatum
Fast-growing South American floater that gives surface-shy fish the shade they crave.
Amazon Sailfin Catfish
FishPterygoplichthys pardalis
A gentle giant that moonlights as your tank's algae cleanup crew.
Ambiacus Cory
FishCorydoras ambiacus
A spotty little armored catfish that occasionally surfaces for a gulp of air.
American Filter Shrimp
InvertAtya scabra
A gentle giant filter feeder that earns its keep cleaning the water column.
American flagfish
FishJordanella floridae
Florida's own killifish relative, built for algae duty and bold personalities.
Andean Catfish
FishAstroblepus ubidiai
A small Ecuadorian mountain catfish with big personality for planted setups.
Anduzei's Nannostomus
FishNannostomus anduzei
The tiniest pencilfish, rarely seen but worth hunting down.
Angelfish
FishPterophyllum scalare
The iconic cichlid that started countless freshwater fishkeeping journeys.
Angel Fish
FishPterophyllum altum
The wild angelfish that makes the common angel look easy.
Angular Sea Whip
CoralPterogorgia anceps
A graceful branching sea whip from Caribbean shallows, manageable even for newer reefers.
Antenna Armored Catfish
FishAncistrus sp
A wide-headed Xingu catfish that rewards patient, experienced keepers with remarkable longevity.
Apalachee Shiner
FishPteronotropis grandipinnis
A dapper little North American native that rewards patient, attentive keepers.
Apisto Blue Head
FishApistogramma resticulosa
A cave-spawning dwarf cichlid from a single Brazilian river system.
Apisto Red Spot
FishApistogramma cinilabra
A compact Peruvian dwarf cichlid with ashy lips and a body built like a brick.
Argentine Tetra
FishHyphessobrycon auca
A little Argentine tetra with subtle details that reward a close look.
Armatus Cory
FishCorydoras armatus
A tiny armored catfish that breathes air and handles low-oxygen conditions with ease.
Arnold's Stony Coral
CoralCaryophyllia (Caryophyllia) arnoldi
A solitary cold-water stony coral from the rocky reefs of the US Pacific coast.
Artichoke Coral
CoralScolymia cubensis
A chunky Atlantic disk coral that rewards beginners with bold, varied color.
Asian Snakeheads
FishChanna sp. "Five Stripe"
A tiny, peaceful snakehead that actually plays nicely with others.
Astatheros macracanthus
FishAmphilophus macracanthus
A hefty Central American cichlid built for life on the riverbed.
Atahualpa Dwarf Cichlid
FishApistogramma atahualpa
A jewel-sized Amazonian dwarf cichlid with fierce maternal instincts.
Atlantic Mushroom Coral
CoralPhyllangia consagensis
A rarely kept Eastern Pacific coral for the dedicated intermediate reef keeper.
Atropersonatum Cory
FishCorydoras atropersonatus
A long-lived little armored catfish that actually breathes air from the surface.