Aquariumpro
🔍
RegionFreshwater

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

Guppy

Guppy

Fish

Poecilia reticulata

The world's most recognizable livebearer, and probably the easiest fish to breed.

Guppy

Guppy

Fish

Tomeurus gracilis

A tiny Venezuelan oddity that lays eggs despite fertilizing them internally.

Half-striped Penguin Tetra

Half-striped Penguin Tetra

Fish

Thayeria ifati

The rarest penguin tetra, with a boldly defined tail stripe and colorful fin tips.

Hancock's Amblydoras
✨AI

Hancock's Amblydoras

Fish

Amblydoras hancocki

A schooling armored catfish with surprising survival tricks up its sleeve.

Hardback King Pleco

Hardback King Pleco

Fish

Glyptoperichthys joselimaianus

A hefty Amazonian pleco that breathes air and rules the tank bottom.

Harrison's Pencilfish
✨AI

Harrison's Pencilfish

Fish

Nannostomus harrisoni

A rare, gentle pencilfish that thrives in groups and rewards patient keepers.

Hatchetfish

Hatchetfish

Fish

Carnegiella strigata strigata

A tiny, peaceful surface-dweller with a deep-keeled body unlike any other tetra.

Head-and-tail Light Tetra

Head-and-tail Light Tetra

Fish

Hemigrammus ocellifer

Two glowing spots, nose to tail. A classic community tetra that delivers every time.

Headstander

Headstander

Fish

Leporinus brunneus

A sleek South American characin from blackwater rivers, suited to spacious tanks.

Headstander

Headstander

Fish

Synaptolaemus latofasciatus

A boldly banded Orinoco headstander with a fascinating taxonomic backstory.

Hemiodus immaculatus
✨AI

Hemiodus immaculatus

Fish

Hemiodopsis immaculatus

A fast-moving, peaceful schooler from Amazonian blackwater river systems.

Henle's Freshwater Stingray

Henle's Freshwater Stingray

Fish

Potamotrygon henlei

A bold, boldly patterned river predator that demands respect and serious space.

High-back Headstander

High-back Headstander

Fish

Abramites hypselonotus

A bottom-grazing oddball that swims nose-down and grows bolder with age.

Highfin Apisto

Highfin Apisto

Fish

Apistogramma hoignei

A dwarf cichlid from the Orinoco with cave-breeding instincts and complex taxonomic intrigue.

Hoplo catfish
✨AI

Hoplo catfish

Fish

Megalechis picta

A mud-burrowing South American catfish that breathes air and builds bubble nests.

Huanta Cory

Huanta Cory

Fish

Corydoras fowleri

A long-snouted cory with a feisty streak and surprisingly long lifespan.

Imitator Cory

Imitator Cory

Fish

Corydoras imitator

A long-lived Rio Negro cory that schools with its color-alike cousins in the wild

Inca

Inca

Fish

Apistogramma baenschi

A beginner-friendly dwarf cichlid with big personality and bold crescent markings.

Isabelita Pleco

Isabelita Pleco

Fish

Hypancistrus debilittera

A compact, cave-dwelling pleco with a big attitude toward its own kind.

Isorineloricaria villarsi

Isorineloricaria villarsi

Fish

Squaliforma villarsi

A rare Venezuelan pleco with surprising peaceful manners and air-breathing tricks.

Jaguar Catfish

Jaguar Catfish

Fish

Liosomadoras oncinus

A boldly patterned nocturnal catfish that fiercely guards its chosen hideout.

January Tetra

January Tetra

Fish

Hemigrammus hyanuary

A peaceful little tetra that looks like a stretched head-and-tail light fish.

Jello Band Catfish

Jello Band Catfish

Fish

Aguarunichthys torosus

A powerfully built Peruvian catfish that treats smaller tankmates as a meal.

Julii Cory

Julii Cory

Fish

Corydoras julii

A spotted little catfish that blinks, breathes air, and belongs in every peaceful community.

Julii Cory

Julii Cory

Fish

Corydoras trilineatus

Commonly sold as julii cory, this peaceful armored catfish is a beginner-friendly gem.

Jumbie Teta

Jumbie Teta

Fish

Ancistrus cf cirrhosus

The bristlenose catfish: a compact, algae-grazing workhorse with a face only a hobbyist could love.

Jumbo Cory

Jumbo Cory

Fish

Corydoras multiradiatus

A large, long-snouted cory with a fascinating air-breathing trick up its sleeve.

Jutai

Jutai

Fish

Apistogramma sp. "Kelleri"

A mouthbrooding dwarf cichlid with a remarkably flexible approach to raising its young.

Kane's cory

Kane's cory

Fish

Corydoras kanei

A small, spotted cory from blackwater rivers that breathes air and charms beginners.

Katvis

Katvis

Fish

Pimelodus ornatus

A bold, predatory catfish with toxic spines and serious schooling instincts.

Keyhole Cichlid

Keyhole Cichlid

Fish

Cleithracara maronii

A gentle, shy cichlid whose camouflage trick is straight out of a nature documentary.

Killifish
✨AI

Killifish

Fish

Austrolebias adloffi

A tiny annual killifish that races through its entire life cycle in months.

Kissing Prochilodus

Kissing Prochilodus

Fish

Semaprochilodus insignis

A migratory Amazon grazer that plays a surprising ecological role in the wild.

Knobnose Whiptail Catfish

Knobnose Whiptail Catfish

Fish

Hemiodontichthys acipenserinus

The only catfish where dad carries the eggs on his lips.

Krauss' Basketmouth
✨AI

Krauss' Basketmouth

Fish

Caquetaia kraussii

A predatory Colombian cichlid that lurks in swamps and ambushes its prey.

Krieg's Mini Tetra
✨AI

Krieg's Mini Tetra

Fish

Odontostilbe kriegi

A small, peaceful South American schooler that thrives in the mid-water column.