Amazon & South America
The Amazon basin and its sister rivers (Orinoco, Xingu, Tapajós) — home to tetras, cichlids, catfish, and many of the hobby's most iconic freshwater species.
629 species · fish
Other regions in The Americas
Guppy
FishPoecilia reticulata
The world's most recognizable livebearer, and probably the easiest fish to breed.
Guppy
FishTomeurus gracilis
A tiny Venezuelan oddity that lays eggs despite fertilizing them internally.
Half-striped Penguin Tetra
FishThayeria ifati
The rarest penguin tetra, with a boldly defined tail stripe and colorful fin tips.
Hancock's Amblydoras
FishAmblydoras hancocki
A schooling armored catfish with surprising survival tricks up its sleeve.
Hardback King Pleco
FishGlyptoperichthys joselimaianus
A hefty Amazonian pleco that breathes air and rules the tank bottom.
Harrison's Pencilfish
FishNannostomus harrisoni
A rare, gentle pencilfish that thrives in groups and rewards patient keepers.
Hatchetfish
FishCarnegiella strigata strigata
A tiny, peaceful surface-dweller with a deep-keeled body unlike any other tetra.
Head-and-tail Light Tetra
FishHemigrammus ocellifer
Two glowing spots, nose to tail. A classic community tetra that delivers every time.
Headstander
FishLeporinus brunneus
A sleek South American characin from blackwater rivers, suited to spacious tanks.
Headstander
FishSynaptolaemus latofasciatus
A boldly banded Orinoco headstander with a fascinating taxonomic backstory.
Hemiodus immaculatus
FishHemiodopsis immaculatus
A fast-moving, peaceful schooler from Amazonian blackwater river systems.
Henle's Freshwater Stingray
FishPotamotrygon henlei
A bold, boldly patterned river predator that demands respect and serious space.
High-back Headstander
FishAbramites hypselonotus
A bottom-grazing oddball that swims nose-down and grows bolder with age.
Highfin Apisto
FishApistogramma hoignei
A dwarf cichlid from the Orinoco with cave-breeding instincts and complex taxonomic intrigue.
Hoplo catfish
FishMegalechis picta
A mud-burrowing South American catfish that breathes air and builds bubble nests.
Huanta Cory
FishCorydoras fowleri
A long-snouted cory with a feisty streak and surprisingly long lifespan.
Imitator Cory
FishCorydoras imitator
A long-lived Rio Negro cory that schools with its color-alike cousins in the wild
Inca
FishApistogramma baenschi
A beginner-friendly dwarf cichlid with big personality and bold crescent markings.
Isabelita Pleco
FishHypancistrus debilittera
A compact, cave-dwelling pleco with a big attitude toward its own kind.
Isorineloricaria villarsi
FishSqualiforma villarsi
A rare Venezuelan pleco with surprising peaceful manners and air-breathing tricks.
Jaguar Catfish
FishLiosomadoras oncinus
A boldly patterned nocturnal catfish that fiercely guards its chosen hideout.
January Tetra
FishHemigrammus hyanuary
A peaceful little tetra that looks like a stretched head-and-tail light fish.
Jello Band Catfish
FishAguarunichthys torosus
A powerfully built Peruvian catfish that treats smaller tankmates as a meal.
Julii Cory
FishCorydoras julii
A spotted little catfish that blinks, breathes air, and belongs in every peaceful community.
Julii Cory
FishCorydoras trilineatus
Commonly sold as julii cory, this peaceful armored catfish is a beginner-friendly gem.
Jumbie Teta
FishAncistrus cf cirrhosus
The bristlenose catfish: a compact, algae-grazing workhorse with a face only a hobbyist could love.
Jumbo Cory
FishCorydoras multiradiatus
A large, long-snouted cory with a fascinating air-breathing trick up its sleeve.
Jutai
FishApistogramma sp. "Kelleri"
A mouthbrooding dwarf cichlid with a remarkably flexible approach to raising its young.
Kane's cory
FishCorydoras kanei
A small, spotted cory from blackwater rivers that breathes air and charms beginners.
Katvis
FishPimelodus ornatus
A bold, predatory catfish with toxic spines and serious schooling instincts.
Keyhole Cichlid
FishCleithracara maronii
A gentle, shy cichlid whose camouflage trick is straight out of a nature documentary.
Killifish
FishAustrolebias adloffi
A tiny annual killifish that races through its entire life cycle in months.
Kissing Prochilodus
FishSemaprochilodus insignis
A migratory Amazon grazer that plays a surprising ecological role in the wild.
Knobnose Whiptail Catfish
FishHemiodontichthys acipenserinus
The only catfish where dad carries the eggs on his lips.
Krauss' Basketmouth
FishCaquetaia kraussii
A predatory Colombian cichlid that lurks in swamps and ambushes its prey.
Krieg's Mini Tetra
FishOdontostilbe kriegi
A small, peaceful South American schooler that thrives in the mid-water column.