Species

Pseudotropheus sp. "Acei"

The only mbuna that feeds exclusively on submerged wood in the wild.

Corydoras acrensis

A little-known armored catfish from Amazonia that breathes air when it needs to.

Brachyrhamdia rambarrani

A Corydoras mimic from blackwater Brazil, rarely seen but worth the search.

Erethistes jerdoni

A tiny, peaceful catfish that hides by day and explores by night.

Nannostomus anduzei

The tiniest pencilfish, rarely seen but worth hunting down.

Hyphessobrycon auca

A little Argentine tetra with subtle details that reward a close look.

Nemacheilus masyai

A boldly patterned river loach that holds its own with attitude to spare.

Puntius tambraparniei

A lively, schooling barb from South India that rewards you with constant activity.

Xenentodon cancila

A torpedo-shaped freshwater predator that will absolutely bite the hand that feeds it.

Akysis portellus

A tiny venomous stream catfish from Myanmar that's easier to keep than it looks.

Akysis pulvinatus

A pint-sized Thai hillstream catfish that hides among rocks and rarely reaches an inch.

Akysis vespertinus

A tiny, venomous stream catfish from Myanmar, rarely seen outside specialist collections.

Lates calcarifer

A giant predator that outgrows almost every aquarium on earth.

Naso annulatus

A genuinely massive unicornfish that schools on outer reef walls across the Indo-Pacific.

Johnrandallia nigrirostris

A schooling butterflyfish that moonlights as a cleaner fish on Pacific reefs.

Opsarius barna

A bold, fast-moving hill stream schooler that needs equally spirited tankmates.

Devario pathirana

A rare Sri Lankan danio with bold vertical bars and a lively, boisterous personality.

Cyclocheilichthys apogon

A schooling barb built for large, lively communities. No barbels, plenty of personality.

Devario devario

A bold, wide-ranging danio that rewards keepers who give it room to school properly.

Acestrorhynchus falcirostris

A riverine ambush predator that plays surprisingly well with tankmates it can't eat.

Naso vlamingii

A color-shifting open-water unicornfish that needs serious space to roam.

Copella callolepis

A tiny Amazonian schooler that rewards patience with vivid courtship displays.

Myleus schomburgkii

A disc-shaped, plant-munching pacu with a bold black flank bar and surprisingly peaceful nature.

Pethia nigripinnis

A cool-water gem from India's Western Ghats, rarely seen outside specialist collections.

Pangio oblonga

A slender, uniformly dark loach that loves company and hides in plain sight.

Ambastaia nigrolineata

A rare, sociable loach with bold racing stripes and fascinating group behaviors.

Thayeria boehlkei

The tetra that swims nose-up and wears a bold racing stripe to its tail.

Balitoropsis zollingeri

A flat-bodied stream crawler that hops and clings across rocks like no other loach.

Pethia nigrofasciata

A peaceful Sri Lankan barb whose males blush deep crimson when rivals are near.

Phallichthys tico

A tiny, peaceful livebearer from Costa Rica's murky highland streams.

Geophagus brachybranchus

A sand-sifting eartheater with elaborate mouthbrooding parental care and a surprisingly gentle nature.

Corydoras acutus

A sharp-snouted little armored catfish with a bold black dorsal spot.

Corydoras schultzei

A rare, captive-bred cory with deep black coloration and charming schooling behavior.

Carnegiella marthae

A tiny, deep-chested surface dweller that will absolutely find any gap in your lid.

Hyphessobrycon socolofi

The bleeding heart tetra rewards patient keepers with spectacular male rivalry displays.

Pseudomugil cyanodorsalis

A tiny blue-backed rainbowfish relative from Australia's brackish mangrove creeks.