Species

Serrasalmus rhombeus

A solitary, powerfully-jawed predator best kept as a single specimen by dedicated keepers.

Carinotetraodon lorteti

A tiny puffer with dramatic color-changing ability and surprisingly long lifespan.

Esox americanus americanus

A pint-sized ambush predator that turns patience into a hunting superpower.

Xiphophorus helleri

A selectively bred swordtail with a ruffled dorsal fin and deep crimson color throughout.

Amphilophus calobrensis

A rare Panamanian cichlid with a ferocious personality and fascinating parental behavior.

Pao abei

A pint-sized freshwater puffer with a big attitude and sharp teeth to match.

Cirripectes stigmaticus

A reef-flat blenny with bold red facial markings and loads of personality.

Phractocephalus hemioliopterus

A gorgeous river giant that almost no home aquarium can truly accommodate.

Acestrorhynchus falcatus

A pike-like ambush predator that minds its manners with fish it can't swallow.

Garra sp. "Redtail"

A mysterious, proboscis-nosed stream fish with mood-signaling facial hardware.

Xenotoca eiseni

A hardy livebearer with a nasty streak and genuinely fascinating reproductive biology.

Cichlasoma festae

A massive, fierce Ecuadorian cichlid that will eat anything it can fit in its mouth.

Erythrinus erythrinus

A bold, air-breathing predator that mimics killifish as a juvenile to lure prey

Potamotrygon orbignyi

A manageable freshwater ray for those ready to step up to serious specialist keeping.

Monopterus albus

A land-crossing, air-breathing swamp predator that isn't actually an eel at all.

Crenicichla saxatilis

A torpedo-shaped predator from Suriname's creeks, built to ambush and dominate.

Potamotrygon schroederi

A rare, patterned freshwater ray that demands respect and serious commitment.

Fossorochromis rostratus

The sand-diving Lake Malawi cichlid that buries itself when spooked.

Aequidens tetramerus

A wide-ranging South American cichlid with vivid locality color forms worth hunting down.

Polypterus endlicheri

A prehistoric African predator that breathes air and grows to impressive lengths.

Polypterus endlicheri endlicheri

A living fossil that can breathe air and survive out of water.

Leiarius marmoratus

A massive schooling catfish with dramatic fins and a nocturnal personality.

Pygocentrus piraya

The largest piranha, and the one that earns the reputation others borrow.

Histrio histrio

A master of disguise that drifts the open ocean on floating weed mats.

Labeotropheus trewavasae

A rock-scraping Lake Malawi mbuna with over 40 wild color forms.

Gastromyzon scitulus

A tiny Bornean torrent-dweller that clings to rocks and grazes algae in miniature rapids.

Lepisosteus oculatus

A living fossil built for ambush, not the average home aquarium.

Sorubim lima

A head-down ambush predator that swims like a falling leaf among the roots.

Plagioscion squamosissimus

A riverside predator built like a torpedo, surprisingly manageable for its size.

Datnioides polota

A bold, bar-patterned predator that bridges freshwater rivers and brackish coastal zones.

Gastromyzon aeroides

A rare Bornean hillstream loach with vivid blue fins found in almost no aquariums yet.

Protopterus dolloi

A living fossil that breathes air and can crawl across dry land.

Serrasalmus elongatus

A sleek, solitary predator that's one of the easiest piranhas to identify correctly.

Buccochromis lepturus

A rarely seen Lake Malawi predator that hunts juvenile cichlids on sandy flats.

Trematocranus placodon

A snail-crushing Lake Malawi hap with a specialist trick most cichlids lack.

Acanthurus sohal

A bold Red Sea beauty that rules its territory with zero tolerance for rivals.