Species

Homalopteroides nebulosus

A tiny forest-stream loach that crawls and hops rather than swims.

Homalopteroides stephensoni

A rare Bornean hillstream loach that crawls and hops across rocks like a tiny lizard.

Homalopteroides tweediei

A tiny hillstream crawler that hops and clings its way across the riverbed.

Pseudomugil gertrudae

Tiny rainforest blue-eye that rewards patient keepers with dazzling fin displays.

Catlocarpio siamensis

One of the world's largest freshwater fish, and a conservation concern in its native rivers.

Stichodactyla gigantea

A vast, velvety anemone that transforms any reef into a clownfish paradise.

Tridacna gigas

The largest bivalve on Earth, and a true centerpiece for the reef tank.

Rhinogobius gigas

A chunky stream goby from East Asia that punches above its size in personality.

Trichogaster fasciata

A peaceful, rarely seen gourami that's actually worth hunting down.

Marisa cornuarietis

The boldly striped ramshorn that doubles as a natural plant trimmer.

Hippocampus ingens

The largest seahorse in the Pacific, built for life among deep coral branches.

Hypostomus regani

A tough, territorial pleco from the river systems of southern South America.

Puntius guganio

A peaceful, schooling barb from South Asia that science hasn't fully figured out yet.

Prionobrama filigera

A peaceful, transparent schooling fish with a blood-red tail that earns its name.

Kryptopterus bicirrhis

The living ghost: almost entirely see-through and best kept in a school.

Kryptopterus geminus

A ghostly schooling catfish that drifts through the water column like smoke

Kryptopterus limpok

A schooling glass catfish cousin rarely seen outside its native rivers

Kryptopterus vitreolus

The see-through catfish that disappears in plain sight

Charax gibbosus

A rarely-seen South American oddity with a see-through body and a quirky head-down posture.

Trigonopoma pauciperforatum

A slender, stripe-bearing rasbora that thrives in soft, tea-colored forest water.

Trigonostigma hengeli

A tiny, soft-water schooler with a vivid orange-edged lambchop mark.

Hemigrammus erythrozonus

A fiery neon stripe makes this hardy little tetra a beginner's best friend.

Barbodes semifasciolatus

The golden form that fooled generations of fishkeepers into thinking it was the real thing.

Ilyodon furcidens

A livebearer with a quasi-placenta and fork-shaped teeth. Genuinely unlike most aquarium fish.

Centropyge aurantia

A rarely photographed dwarf angel that genuinely earns its golden name.

Centropyge heraldi

A clean, all-yellow dwarf angel that's bolder than its simple look suggests.

Pomacea canaliculata

A bold, fast-growing snail that can outpace most aquatic plants.

Brachygobius aggregatus

A tiny bumblebee goby that thrives from freshwater streams to brackish estuaries.

Chaetodon semilarvatus

A bold golden butterflyfish from the Red Sea that pairs for life.

Apogon aureus

A social reef dweller that rearranges its social life with the seasons.

Sinibotia robusta

A stocky, sociable Chinese loach that rewards patient keepers with fascinating group dynamics.

Pethia gelius

A tiny, peaceable barb that shows its best colors in a tight-knit group.

Valenciennea strigata

A sand-sifting goby that pairs for life and keeps your substrate spotless.

Pangio doriae

A worm-like peat swamp loach that loves to pile into hiding spots with its companions.

Siganus guttatus

A schooling reef herbivore with venomous spines and a tide-following lifestyle.

Hemigrammus rodwayi

The golden color isn't natural. It takes a parasite to unlock it.