Species

Hydrolycus scomberoides

Vampire-fanged characin that's surprisingly peaceful with fish too big to eat.

Betta imbellis

The gentler betta. Males can sometimes share a tank if given enough cover.

Cirrhilabrus temminckii

A dazzling fairy wrasse with flowing fins that commands attention in any reef tank.

Trichopodus leerii

One of the gentlest gouramis, draped in a galaxy of pearlescent spots.

Trichogaster leeri

A lace-patterned gourami with feeler fins and a gentle disposition.

Micralestes stormsi

A lively Congo basin shoaler that brings energy to the mid-water column.

Centropyge vrolikii

A small, reef-dwelling angel that pairs for life and plays it cool with tankmates.

Betta pugnax

A forest stream betta with a gentler side and fascinating mouthbrooding behavior.

Nannostomus grandis

The largest pencilfish, rarely seen but worth the search.

Nannostomus minimus

Tiny, timid, and barely an inch long. A pencilfish for the dedicated nano keeper.

Thayeria obliqua

The original penguin tetra, now overshadowed by its more common cousin.

Desmopuntius hexazona

A dainty six-banded barb that thrives in big, lively groups

Luciocephalus aura

A Sumatran swamp predator that breathes air and strikes with lightning speed.

Charax condei

A secretive little predator that sneaks into shipments of other characins.

Gymnapogon philippinus

A tiny, overlooked Pacific cardinalfish that thrives in the company of its own kind.

Hemigrammus filamentosus

A slender Brazilian tetra with a filamentous tail fin twist.

Rhinecanthus aculeatus

A bold reef rearanger that sleeps on its side and makes noise when startled.

Crenicichla lepidota

A torpedo-shaped predator that brings serious personality to a South American biotope.

Crenicichla lugubris

A deceptively pretty juvenile that grows into a large, predatory tank-buster.

Luciocephalus pulcher

A pike-like gourami relative from blackwater forests, built for ambush.

Pseudotropheus socolofi

One of the calmer mbuna, but still needs its own rules respected.

Paracheilinus carpenteri

A tiny reef wrasse that puts on a dazzling courtship flash of pink and blue.

Chalceus macrolepidotus

A fast-moving, surface-skimming predator with oversized scales and a vivid pink tail.

Apogon atricaudus

A secretive Pacific reef cardinalfish that comes alive after dark.

Betta pulchra

A secretive peat swamp betta that broods its young in the father's mouth.

Hippocampus abdominalis

The largest seahorse species, with a comically round belly to match its personality.

Centropyge potteri

Hawaii's own pygmy angel, beautiful but notoriously tricky to settle in.

Copadichromis virginalis

A peaceable Lake Malawi cichlid that comes in a rainbow of locality color forms.

Nannostomus rubrocaudatus

Tiny, territorial, and blazing with red-purple color. A pencilfish with real attitude.

Dichotomyctere ocellatus

A pint-sized puffer from Southeast Asia with a big predatory personality.

Boraras maculatus

A pea-sized schooling fish that rewards patience with dazzling group displays.

Hemitaurichthys polylepis

A schooling butterflyfish that hovers in open water above reef drop-offs.

Hemitaurichthys zoster

A schooling butterfly that prefers open water over reef crevices.

Holacanthus ciliaris

A regal Atlantic giant that demands space and earns every inch of it.

Copella vilmae

A jewel-toned splash of color from the blackwater streams of the upper Amazon.

Betta raja

A wild Sumatran mouthbrooder with dramatic fins and a gentle personality.