North America

Sarotherodon melanotheron

A hardy West African mouthbreeder that thrives in brackish and freshwater setups alike.

Atractosteus spatula

One of the world's largest freshwater fish, and a lifelong commitment.

Jordanella floridae

Florida's own killifish relative, built for algae duty and bold personalities.

Pteronotropis grandipinnis

A dapper little North American native that rewards patient, attentive keepers.

Oreochromis aureus

A cold-tolerant tilapia with surprising hardiness and a calm, active personality.

Ameca splendens

A rare Mexican livebearer with a placenta-like structure and feisty personality.

Adinia xenica

A rare Gulf Coast killifish that thrives where fresh water meets salt marsh.

Equetus lanceolatus

A boldly striped reef fish shaped like a living exclamation mark.

Dormitator maculatus

A bruiser from the brackish margins, built tough and not shy about it.

Herichthys carpintis

A pearl-flecked bruiser that rewards bold hobbyists willing to manage its attitude.

Heterandria formosa

One of the world's smallest fish, with a uniquely continuous birthing process.

Achirus lineatus

A master of disguise that buries itself until almost invisible.

Hyphessobrycon compressus

The founding species of its entire genus, rarely seen in the hobby.

Cualac tessellatus

A rare Mexican pupfish with a conservation story worth getting behind.

Astyanax mexicanus

The cave fish that lost its eyes and gained extraordinary senses.

Herichthys minckleyi

A rare Mexican cichlid from one of the world's most extraordinary desert springs.

Gambusia affinis

The notorious mosquitofish: tough, prolific, and not a friendly neighbor.

Channa argus

A true apex predator that can survive days out of water. And is banned in many countries.

Pterygoplichthys multiradiatus

A dinosaur-sized algae grazer built for decades of service in large tanks.

Dormitator latifrons

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

Cyprinodon alvarezi

A fish extinct in the wild, kept alive by dedicated hobbyists worldwide.

Characodon lateralis

A rare Mexican livebearer with a complicated identity and real conservation value.

Notropsis chrosomus

A native North American minnow that transforms into a living jewel come breeding season.

Trachemys scripta elegans

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

Esox americanus americanus

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

Poecilia latipinna

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

Cyprinodon variegatus

A tough little pupfish that thrives where most fish would struggle to survive.

Lepisosteus oculatus

A living fossil built for ambush, not the average home aquarium.

Herichthys tamasopoensis

A rare Mexican cichlid from crystal-clear limestone rivers, built for hard water.

Zoogoneticus tequila

A fish kept in aquariums that may no longer exist anywhere in the wild.

Herichthys cyanoguttatus

The only cichlid native to the United States, and it has the attitude to prove it.

Xiphophorus variatus

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