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

Red-tailed Freshwater Barracuda, Spotted Cachorro

Red-tailed Freshwater Barracuda, Spotted Cachorro

Fish

Acestrorhynchus falcatus

A pike-like ambush predator that minds its manners with fish it can't swallow.

Redtail Splitfin

Redtail Splitfin

Fish

Xenotoca eiseni

A hardy livebearer with a nasty streak and genuinely fascinating reproductive biology.

Red Terror

Red Terror

Fish

Cichlasoma festae

A massive, fierce Ecuadorian cichlid that will eat anything it can fit in its mouth.

Red Wolf Fish

Red Wolf Fish

Fish

Erythrinus erythrinus

A bold, air-breathing predator that mimics killifish as a juvenile to lure prey

Reticulate Freshwater Stingray

Reticulate Freshwater Stingray

Fish

Potamotrygon orbignyi

A manageable freshwater ray for those ready to step up to serious specialist keeping.

Reynoldsi Cory
✨AI

Reynoldsi Cory

Fish

Corydoras reynoldsi

A tiny Colombian cory with a surprisingly long life and some endearing quirks.

Ringtailed Pike Cichlid
✨AI

Ringtailed Pike Cichlid

Fish

Crenicichla saxatilis

A torpedo-shaped predator from Suriname's creeks, built to ambush and dominate.

Rio Napo cory
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Rio Napo cory

Fish

Corydoras napoensis

A tiny armored catfish from Ecuador that rewards patient keepers with decades of personality.

Ripsaw Catfish

Ripsaw Catfish

Fish

Megalodoras uranoscopus

A gentle giant catfish from the Amazon that travels in groups and growls.

River Goby

River Goby

Fish

Awaous banana

A sand-sifting river giant that grazes algae like an aquatic lawnmower.

Robusta Cory

Robusta Cory

Fish

Corydoras robustus

One of the largest corys around, rarely seen and worth the hunt.

Rocio spinosissima
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Rocio spinosissima

Fish

Archocentrus spinosissimus

A spiny Central American cichlid from Guatemala's Lake Izabal basin, rarely seen in the hobby.

Rose Common Pleco
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Rose Common Pleco

Fish

Hypostomus roseopunctatus

A hefty South American pleco with an unusual ability to breathe air.

Rosette River Stingray

Rosette River Stingray

Fish

Potamotrygon schroederi

A rare, patterned freshwater ray that demands respect and serious commitment.

Rosy Basketmouth

Rosy Basketmouth

Fish

Caquetaia spectabilis

A bold Amazonian cichlid that pairs for life and defends its brood fiercely.

Rosy Tetra

Rosy Tetra

Fish

Hyphessobrycon bentosi

A rosy, fin-flaring little characin that puts on its best show in a crowd.

Rosy Tetra

Rosy Tetra

Fish

Hyphessobrycon rosaceus

A softly blushing schooling tetra that rewards keepers who think in groups.

Rotpunct Apisto
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Rotpunct Apisto

Fish

Apistogramma alacrina

A pint-sized Colombian dwarf cichlid with a uniquely spotted pectoral fin base.

Royal Farlowella Whiptail Catfish (Tank-Bred)

Royal Farlowella Whiptail Catfish (Tank-Bred)

Fish

Sturisoma panamense

An elegant whiptail catfish that grazes algae and breathes air when needed.

Royal Pleco

Royal Pleco

Fish

Panaque nigrolineatus

A wood-rasping giant with bold racing stripes and a reclusive personality.

Royal Whiptail

Royal Whiptail

Fish

Sturisoma festivum

A sleek, whiskered algae grazer from the Maracaibo basin with a surprising trick up its sleeve.

Ruby Tetra

Ruby Tetra

Fish

Axelrodi riesei

A tiny red gem from Colombia that rewards patient, species-focused keepers.

Rummy Nose Tetra

Rummy Nose Tetra

Fish

Hemigrammus bleheri

A tight-schooling tetra whose vivid red nose blazes brightest in a large group.

Rummy Nose Tetra

Rummy Nose Tetra

Fish

Hemigrammus rhodostomus

The original rummy-nose, built for tight shoals and soft Amazon water.

Saddleback Acara

Saddleback Acara

Fish

Aequidens tetramerus

A wide-ranging South American cichlid with vivid locality color forms worth hunting down.

Saddle Corydoras

Saddle Corydoras

Fish

Corydoras ephippifer

A rarely-seen Amazonian cory with clear fins and a surprisingly long lifespan.

Sailfin Molly

Sailfin Molly

Fish

Poecilia latipinna

The male's enormous sail-like dorsal fin makes this livebearer instantly recognizable.

Sailfin Molly

Sailfin Molly

Fish

Poecilia velifera

The towering dorsal fin of this livebearer is a true showpiece when conditions are right.

Sailfin Pimeloid
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Sailfin Pimeloid

Fish

Leiarius marmoratus

A massive schooling catfish with dramatic fins and a nocturnal personality.

Sailfin Pleco

Sailfin Pleco

Fish

Glyptoperichthys gibbiceps

A decades-long commitment: this armored giant lives longer than most pets.

Sailfin Tetra

Sailfin Tetra

Fish

Crenuchus spilurus

A solitary little predator with theatrical fin displays and devoted fathering instincts.

Salmacis Cory

Salmacis Cory

Fish

Scleromystax salmacis

A tiny armored catfish from Brazilian ponds, with a venomous sting to respect.

Salt and Pepper Cory

Salt and Pepper Cory

Fish

Corydoras habrosus

A pint-sized armored catfish that breathes air and blinks at you.

Salvin's Cichlid

Salvin's Cichlid

Fish

Cichlasoma salvini

Colorful, compact, and surprisingly ferocious. A Central American cichlid with real attitude.

San Domingo Cichlid
✨AI

San Domingo Cichlid

Fish

Thorichthys callolepis

A lesser-known Mexican cichlid from swift, rocky headwaters worth a closer look.

Sands' cory

Sands' cory

Fish

Corydoras davidsandsi

A rarely exported Rio Negro cory with a bold split dorsal bar and surprising longevity.