Species

Cynotilapia afra

A scrappy Malawi mbuna that rewrites the rules with open-water schooling behavior.

Anomalochromis thomasi

A shy, peaceable little cichlid that rewards patient keepers with devoted parenting.

Hepsetus odoe

A razor-toothed ambush predator built like a torpedo, straight from West African rivers.

Lates niloticus

One of the world's most destructive invasive species, and genuinely unsuitable for home aquaria.

Betta akarensis

A secretive Bornean mouthbrooder that rewards patient, dedicated keepers.

Nannostomus anduzei

The tiniest pencilfish, rarely seen but worth hunting down.

Betta apollon

A wild Thai hillstream betta that thrives in cool, shadowy, soft-water streams.

Paracirrhites arcatus

A bold perching predator that rules its corner of the reef with attitude.

Badis assamensis

A secretive Indian cave-spawner with remarkable breeding color displays.

Betta aurigans

A rare wild betta from a single Indonesian island, full of quiet personality.

Gymnotus carapo

A electric-field-wielding oddball that can breathe air and recognize its neighbors

Dunckerocampus dactyliophorus

A boldly banded reef pipefish that breeds in captivity and hides in caves.

Pterapogon kauderni

A rare, naturally restricted cardinalfish with fascinating paternal mouthbrooding behavior.

Elacatinus figaro

Brazil's own cleaner goby, busy grooming tankmates on the reef.

Hippocampus barbouri

A boldly patterned seahorse with one of the most ornate snouts in the genus.

Nannostomus espei

The only pencilfish that wears its night pattern all day long.

Diploprion bifasciatum

A reef predator that poisons its own tank water when threatened.

Pseudanthias bartlettorum

A sociable reef fish that thrives in groups and brings constant mid-water activity.

Chelmon mulleri

A reef butterflyfish that prefers muddy estuaries over pristine coral gardens.

Pogonoperca punctata

A secretive reef ambush predator with a toxic secret beneath its skin.

Betta splendens

The world's most recognizable fighting fish, now bred in countless colors and fin shapes.

Rhaphiodon vulpinus

A sleek South American predator that outgrows almost every home aquarium.

Copella callolepis

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

Copella nigrofasciata

A dapper little Amazonian splasher with devoted fathering instincts.

Ostracion meleagris

A living mosaic of spots with a secret chemical defense you need to know about.

Betta persephone

A velvety black pygmy betta from some of the world's most acidic swamps.

Pervagor melanocephalus

A secretive reef filefish that pairs up and lurks among coral-rich ledges.

Ostracion cubicus

Adorable cube-shaped reef fish that hides a dangerous chemical defense.

Phallichthys tico

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

Apogon nigrofasciatus

A secretive reef-dweller that comes alive after dark to hunt the rubble.

Hyphessobrycon pyrrhonotus

The rarest bleeding heart tetra, with a vivid red wedge only it can claim.

Hyphessobrycon socolofi

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

Inpaichthys kerri

Tiny tetra with big color rivalry. Males glow brightest when competing for attention.

Thalassoma amblycephalum

A reef-dwelling wrasse with bold color phases and a peaceful community nature.

Rasbora einthovenii

A peaceful forest-stream rasbora with a charmingly crinkled lateral stripe.

Fundulopanchax gardneri gardneri

A hardy, colorful killifish that's genuinely beginner-friendly and easy to breed.