Aquariumpro
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RegionFreshwaterSaltwaterBrackish

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.

739 species · freshwater · fish

Otocinclus

Otocinclus

Fish

Otocinclus vittatus

Tiny algae-grazing catfish that plasters itself to glass and plants alike.

Otocinclus affinis

Otocinclus affinis

Fish

Macrotocinclus affinis

Tiny Brazilian algae-eater with a habit of resting right on the front glass.

Otocinclus Catfish (Tank-Bred)

Otocinclus Catfish (Tank-Bred)

Fish

Otocinclus macrospilus

The most commonly sold oto, fragile at first but rewarding once settled.

Otocinclus cocama
✨AI

Otocinclus cocama

Fish

A tiny Peruvian algae grazer with bold, zebra-like blotches and a gentle disposition.

Oyapock Cory

Oyapock Cory

Fish

Corydoras condiscipulus

A long-lived Oyapock armored catfish that breathes air and blinks its eyes.

Oyapock Eartheater
✨AI

Oyapock Eartheater

Fish

Geophagus camopiensis

A rarely seen eartheater with elaborate mouthbrooding behavior and real personality.

Pacific Fat Sleeper

Pacific Fat Sleeper

Fish

Dormitator latifrons

A chunky estuarine predator that breathes air and swallows anything it can fit in its mouth.

Pacific Molly

Pacific Molly

Fish

Poecilia butleri

A personable little livebearer that grazes algae and practically eats from your hand.

Pacu

Pacu

Fish

Piaractus mesopotamicus

A seed-crunching giant from South American floodplains that outgrows almost any home aquarium.

Painted Sailfin Catfish

Painted Sailfin Catfish

Fish

Leiarius pictus

A majestic sailfin catfish only suited to those with truly enormous tanks.

Palespotted Corydoras

Palespotted Corydoras

Fish

Corydoras gossei

A long-lived, peaceful bottom dweller that breathes air and blinks its eyes.

Panamanian Eartheater

Panamanian Eartheater

Fish

Geophagus crassilabris

A rare Panamanian cichlid with a reddish glow and fascinating sand-sifting habits.

Panda Cory

Panda Cory

Fish

Corydoras panda

The panda-patterned cory that's as personable as it is peaceful.

Panda Dwarf Cichlid

Panda Dwarf Cichlid

Fish

Apistogramma nijsseni

A panda-patterned dwarf cichlid with fierce maternal instincts and blackwater roots.

Panda Uaru

Panda Uaru

Fish

Uaru fernandezyepezi

A rare Orinoco cichlid that few hobbyists ever get to keep.

Pantanal Eartheater

Pantanal Eartheater

Fish

Satanoperca pappaterra

A sand-sifting cichlid that fearlessly charges piranhas in the wild.

Pantano Cichlid

Pantano Cichlid

Fish

Herichthys pearsei

A surprisingly gentle giant from Mexican and Guatemalan river systems.

Parnaíba Eartheater
✨AI

Parnaíba Eartheater

Fish

Geophagus parnaibae

A sand-sifting cichlid from Brazil that's gentler than its reputation suggests.

Parrot Cichlid

Parrot Cichlid

Fish

Hoplarchus psittacus

A rare blackwater cichlid that defies its aggressive reputation in the right company.

Parrot Doradid

Parrot Doradid

Fish

Rhynchodoras woodsi

A rarely seen Amazonian catfish with a mysterious bony beak-like projection

Parrot Pacu
✨AI

Parrot Pacu

Fish

Ossubtus xinguense

A plant-munching Xingu oddity that surprises keepers with its feisty personality.

Pastaza Corydora
✨AI

Pastaza Corydora

Fish

Corydoras pastazensis

A long-lived Ecuadorian armored catfish with a fascinating air-breathing trick.

Patrick's Acara
✨AI

Patrick's Acara

Fish

Aequidens patricki

A rarely traded Peruvian cichlid with a feisty personality and serious collector appeal.

Patwa

Patwa

Fish

Krobia guianensis

A sleek Guianan cichlid that rewards patient keepers with real personality.

Payara

Payara

Fish

Hydrolycus scomberoides

Vampire-fanged characin that's surprisingly peaceful with fish too big to eat.

Peacock Bass

Peacock Bass

Fish

Cichla kelberi

A hard-hitting Amazonian predator that rewards patient keepers with bold personality.

Peacock Bass

Peacock Bass

Fish

Cichla ocellaris

A river predator that grows to nearly three feet and eats anything it can catch.

Peacock Bass

Peacock Bass

Fish

Cichla orinocensis

A river predator that grows to nearly two feet and eats its tankmates.

Pearl Cichlid

Pearl Cichlid

Fish

Geophagus brasiliensis

Iridescent eartheater with big personality and bigger territorial instincts.

Peckoltia pankimpuju
✨AI

Peckoltia pankimpuju

Fish

Hemiancistrus pankimpuju

A rugged Peruvian boulder-dweller with a surprising ability to breathe air.

Pencilfish
✨AI

Pencilfish

Fish

Nannostomus grandis

The largest pencilfish, rarely seen but worth the search.

Pencilfish
✨AI

Pencilfish

Fish

Nannostomus minimus

Tiny, timid, and barely an inch long. A pencilfish for the dedicated nano keeper.

Penguin Fish

Penguin Fish

Fish

Thayeria obliqua

The original penguin tetra, now overshadowed by its more common cousin.

Peppered Cory

Peppered Cory

Fish

Corydoras paleatus

Hardy, armored, and social. A true workhorse of the community tank.

Perruno

Perruno

Fish

Perrunichthys perruno

A little-known giant catfish from Venezuela's Lake Maracaibo basin.

Peru black cory

Peru black cory

Fish

Corydoras semiaquilus

A long-lived Amazonian bottom-dweller with a surprisingly expressive face.