Species

Astyanax fasciatus

A bold, wide-ranging tetra with a predatory streak that surprises many keepers.

Corydoras hastatus

Tiny armored catfish that defies its family by cruising the midwater column.

Amphilophus citrinellus

A bold, intelligent cichlid that recognizes its owner and demands respect in return.

Corydoras spectabilis

The 'millennium cory'. A peaceful schooler with spotted flair from Brazil's Guaporé basin.

Parasphaerichthys lineatus

A tiny Burmese labyrinth fish with some of the most unpredictable breeding behavior in the hobby.

Serrasalmus sanchezi

A misidentified mini-piranha relative with razor teeth and a fiery red throat.

Herichthys minckleyi

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

Poecilia sphenops

A livebearer classic that can thrive from freshwater all the way to full marine conditions.

Vieja heterospila

A robust Central American cichlid from some of Mexico's most storied river systems.

Xiphophorus montezumae

A wild swordtail with an absurdly long tail sword that rivals its own body length.

Trichogaster microlepis

A silver-scaled Southeast Asian gourami with a gentle nature and labyrinth breathing.

Parosphromenus linkei

A pint-sized blackwater gourami with head-down courtship displays unlike any other.

Variabilichromis moorii

A Lake Tanganyika rockdweller with a fascinating family life and devious brood tactics.

Gambusia affinis

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

Hara jerdoni

A moth-like micro catfish from Indian hill streams, best kept in groups.

Amarginops ornatus

A sleek Congo predator with ornate markings and serious attitude toward tankmates.

Acanthocobitis botia

A peaceful, quirky bottom-dweller with a false eye that fools predators.

Amphilius platychir

A sleek African stream catfish built for life in fast, rocky currents.

Oreochromis mossambicus

One of the world's most invasive fish, sold as food and kept as a curiosity.

Garra mullya

A hardy Indian stream fish with a sucker disc built for fast-moving water.

Neolamprologus multifasciatus

Possibly the world's smallest cichlid, big attitude packed into a tiny shell.

Pomacea bridgesii

A peaceful, algae-grazing snail that comes in a rainbow of shell colors.

Mystus mysticetus

A gregarious Southeast Asian catfish with a uniquely lateral-eyed look.

Gymnocharacinus bergi

A scaleless South American oddity from one of the world's most isolated streams.

Aphanius arakensis

A rare Iranian killifish relative worth keeping for conservation as much as curiosity.

Microdevario nanus

Tiny Myanmar schooler with a bold dorsal-fin blotch and big personality in small packages.

Rhinogobius nantaiensis

A feisty Taiwanese stream goby that rewards patient, experienced keepers.

Chalinochromis sp. "Ndobhoi"

A blotch-patterned Tanganyikan rock dweller with fascinating colony breeding behavior.

Nassarius distortus

A tidy little scavenger from the Yaeyama Islands with a distinctively ornate shell.

Sundadanio axelrodi

Tiny blackwater gem that rewards patient keepers with dazzling group behavior.

Melanotaenia praecox

Tiny rainbowfish that turns up the color when kept in a proper shoal.

Stiphodon ornatus

A tiny, colorful stream goby from Sumatra that rewards patient observers.

Paracheirodon innesi

The fish that turned millions of people into aquarium keepers.

Neritina natalensis

The algae-scrubbing snail that won't overrun your tank.

Corydoras reticulatus

A fine-patterned bottom dweller that lives surprisingly long in good company.

Corydoras nijsseni

A rare Rio Negro cory with bold patterning and a surprisingly long lifespan.