Species

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.

Polypterus weeksii

A living fossil from the Congo with a swim bladder that doubles as a lung.

Neolamprologus multifasciatus

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

Danafungia horrida

A free-living disc coral that can right itself when flipped over.

Scleropages inscriptus

The only arowana with geometric line markings etched across its head and flanks.

Pseudocheilinus ocellatus

A secretive reef wrasse with bold colors and a talent for disappearing.

Aphanius arakensis

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

Rhinogobius nantaiensis

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

Hippocampus angustus

A spiny Western Australian seahorse with a distinctively slender profile.

Arothron manilensis

A bold, beak-toothed puffer that thrives from mangroves to lagoon reefs.

Elacatinus oceanops

A tiny cleaner fish that runs its own reef spa service.

Polypterus bichir

A living fossil that breathes air and moves like an eel.

Synodontis schall

The unpredictable bruiser of the Synodontis world, not for community tanks.

Hemibagrus punctatus

A rare, spot-flanked Indian catfish built for serious catfish specialists only.

Aulonocara baenschi

A peacock cichlid with a curved snout and brilliant gold coloration from Lake Malawi.

Ctenops nobilis

The noble gourami: a labyrinth fish that spits its eggs straight into dad's mouth.

Channa argus

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

Cypho purpurascens

A bold little reef predator that punches well above its weight in attitude.

Chitala ornata

A prehistoric river predator that grows far larger than most tanks can handle.

Ctenopoma muriei

A compact African labyrinth fish that punches above its weight in personality.

Dendrochirus biocellatus

A shy, venomous reef dweller that hides by day and hunts by night.

Takifugu ocellatus

A surprisingly peaceful puffer with a wild lifecycle from river to reef.

Leiodon cutcutia

A pufferfsh from Asian rivers and canals with a surprisingly long lifespan.

Channa pleurophthalma

Bold ocellus markings and predatory charisma from the peat swamps of Borneo.

Potamotrygon motoro

A disc-shaped apex predator that can learn to recognize its keeper.

Gobiodon okinawae

Tiny, vivid, and inseparable from its Acropora home.

Nannostomus unifasciatus

A tiny pencilfish that swims at a permanent angle, day and night.

Betta unimaculata

A mouthbrooding Betta from Borneo that bucks the aggressive stereotype entirely.

Pseudanthias fasciatus

A deep-reef anthias famous for swimming upside-down along cave ceilings.

Macrognathus aculeatus

A serpentine burrower with a single bold stripe and a secretive personality.

Pseudocorynactis caribbeorum

A nocturnal Caribbean predator with sticky orange-tipped tentacles that can snag small fish.

Etroplus maculatus

The only cichlid native to India, with a fascinating cleaning-fish side hustle.

Microctenopoma ansorgii

A jewel-toned African labyrinth fish that rewards patient, experienced keepers.

Tubastraea columnata

A bold, non-photosynthetic coral that rewards patient target feeders with vivid blooms.