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.

816 species · fish

Red-bellied Pacu

Red-bellied Pacu

Fish

Piaractus brachypomus

A fruit-eating giant that outgrows nearly every home aquarium.

Red-bellied Piranha

Red-bellied Piranha

Fish

Pygocentrus nattereri

The world's most notorious fish, and surprisingly misunderstood in the wild.

Redbreast Acara

Redbreast Acara

Fish

Laetacara dorsigera

A tiny South American cichlid with a boldly colored chest and a gentle personality.

Red Devil

Red Devil

Fish

Amphilophus labiatus

A notoriously aggressive cichlid that somehow also becomes your best friend.

Red-eared Slider

Red-eared Slider

Fish

Trachemys scripta elegans

A long-lived turtle that outlasts most aquariums. And many life plans.

Redeye Piranha

Redeye Piranha

Fish

Serrasalmus rhombeus

A solitary, powerfully-jawed predator best kept as a single specimen by dedicated keepers.

Redeye Tetra

Redeye Tetra

Fish

Moenkhausia oligolepis

A peaceful, easy-to-breed South American tetra often mistaken for its flashier cousin.

Red Fin Banded Pencilfish
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Red Fin Banded Pencilfish

Fish

Nannostomus erythrurus

A slender, vividly finned pencilfish that rewards patient, detail-oriented keepers.

Redfin Pickerel

Redfin Pickerel

Fish

Esox americanus americanus

A pint-sized ambush predator that turns patience into a hunting superpower.

Redflank Bloodfin

Redflank Bloodfin

Fish

Aphyocharax rathbuni

A fin-nipping schooler that rewards careful community planning with lively, colorful energy.

Red Hook Silver Dollar

Red Hook Silver Dollar

Fish

Myloplus rubripinnis

A coin-shaped giant with a bold red fin and a serious appetite for plants.

Red Line Tetra

Red Line Tetra

Fish

Hyphessobrycon amapaensis

A tiny, rarely seen Brazilian tetra with vivid red and cream lateral striping.

Red Lips
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Red Lips

Fish

Satanoperca rhynchitis

A gregarious French Guiana cichlid with distinctive red lips and surprising gentleness outside of spawning.

Red Lizard Catfish

Red Lizard Catfish

Fish

Rineloricaria sp

A slender, peaceful whiptail with a mysterious origin and surprisingly easy breeding behavior.

Red Lyretail Swordtail
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Red Lyretail Swordtail

Fish

Xiphophorus helleri

A selectively bred swordtail with a ruffled dorsal fin and deep crimson color throughout.

Red Mouth Headstander

Red Mouth Headstander

Fish

Anostomus ternetzi

A boldly striped headstander that swims at its own angle. Literally.

Red Orange Neon

Red Orange Neon

Fish

Pseudomugil sp. "Red Neon"

Tiny, vivid, and electric. A micro-rainbow that rewards patient keepers.

Red Pencilfish

Red Pencilfish

Fish

Nannostomus mortenthaleri

A tiny, fiery Peruvian pencilfish that punches well above its weight in attitude.

Red Phantom Tetra

Red Phantom Tetra

Fish

Hyphessobrycon sweglesi

A deep-red schooling tetra that rewards you for keeping bigger groups.

Redspot Cichlid

Redspot Cichlid

Fish

Amphilophus calobrensis

A rare Panamanian cichlid with a ferocious personality and fascinating parental behavior.

Red-spotted Copeina
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Red-spotted Copeina

Fish

Copella eigenmanni

A small, peaceful Amazonian schooler with subtle charm and fascinating breeding behavior.

Redspotted Tetra

Redspotted Tetra

Fish

Copeina guttata

A paternal nest-guarder from the Amazon with bold red spots and real personality.

Redstriped Eartheater

Redstriped Eartheater

Fish

Geophagus surinamensis

A mouthbrooding digger that sifts sand and fiercely guards its young.

Redtail Catfish

Redtail Catfish

Fish

Phractocephalus hemioliopterus

A gorgeous river giant that almost no home aquarium can truly accommodate.

Red-tailed Flag Tetra

Red-tailed Flag Tetra

Fish

Hyphessobrycon agulha

A rare, peaceful tetra that anchors its entire species group by name.

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
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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
✨AI

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.