The Americas

Hoplias malabaricus

A nocturnal ambush predator with jaws that mean serious business.

Pseudoplatystoma fasciatum

A river giant that outgrows almost every home aquarium faster than you'd expect.

Brachyplatystoma tigrinum

A boldly barred Amazonian predator that demands a truly massive tank.

Aguarunichthys tocantinsensis

A powerful Amazonian predator built for fast water and rocky riverbeds.

Hyphessobrycon stegemanni

A tiny Tocantins tetra often mistaken for its look-alike neighbor.

Manicina areolata

A free-roaming Caribbean brain coral that wanders seagrass beds on its own cone-shaped base.

Dendrophyllia californica

A non-photosynthetic Pacific coral that thrives where light is scarce.

Uaru amphiacanthoides

A surprisingly gentle giant that raises fry just like discus do.

Atractosteus tropicus

A living fossil from Central America that grows to canoe-like proportions.

Cladocora arbuscula

A delicate, tubular Atlantic coral that thrives where other corals struggle.

Cichla monoculus

A river predator built for size, speed, and a 20-year commitment.

Chalceus erythrurus

A bold, active surface cruiser with a brilliantly colored tail to match its attitude.

Turbo fluctuosa

A tireless algae grazer that needs a helping hand if it tips over.

Farlowella mariaelenae

A living twig that grazes algae and barely moves. Until it does.

Farlowella vittata

A living twig that vanishes in plain sight among branches and leaves.

Vieja bifasciata

Two bold facial stripes mark this colorful, feisty Central American cichlid.

Nannostomus bifasciatus

A schooling pencilfish that tilts nose-up and swims in tight, lively groups.

Amaralia hypsiura

A flat, leaf-litter specialist with a peculiar silhouette and peaceful disposition.

Astyanax bimaculatus

A robust South American characin that rewards keepers willing to think big.

Nannostomus digrammus

A rare, peaceful pencilfish that doubles as the perfect dither fish for dwarf cichlid tanks.

Hemigrammus ulreyi

A peaceful schooling tetra that's rarer in tanks than its charm deserves.

Apistogramma borellii

A gentle, cold-tolerant dwarf cichlid with big personality in a small package.

Discosoma neglecta

A hardy, low-maintenance mushroom coral perfect for shaded reef corners.

Pyrrhulina laeta

A slender Amazonian predator that punches above its small size.

Hydrolycus armatus

A river predator with fangs to match its reputation, and size to back it up.

Leporacanthicus joselimai

Fanged river catfish with bold markings that fade into something more mysterious with age.

Xiphophorus variatus

Dozens of color forms, endless fry, and tolerant enough for any community tank.

Potamotrygon castexi

A disc-shaped river predator that can actually solve puzzles to get its food.

Apistogramma viejita

A rarely traded Colombian dwarf cichlid that's almost impossible to find true-to-name.

Gobioides broussonnetii

A dragon-faced gentle giant that's all looks and no aggression.

Corydoras virginiae

A long-lived armored catfish from Peru with a surprisingly personal quirk: it blinks.

Calophysus macropterus

The Vulture Catfish: a relentless scavenger built for South America's biggest rivers.

Rhodactis osculifera

A tough, low-light Caribbean corallimorph that thrives where many corals struggle.

Ceratopteris thalictroides

A fast-growing tropical fern that shades out algae and shelters shy fish.

Corydoras weitzmani

A long-lived little catfish that blinks at you from the bottom of the tank.

Rhizopsammia wellingtoni

A rare Galapagos solitary coral that thrives in lower light conditions.