Species

Acestrorhynchus microlepis

A sleek, toothy predator that schools as a juvenile and hunts like a pike.

Acestrorhynchus pantaneiro

A sleek river predator that plays surprisingly well with the right tankmates.

Boulengerella cuvieri

A surface-hunting predator that outgrows almost every home aquarium.

Crenicichla albopunctata

A compact, manageable pike cichlid with serious predator personality.

Crenicichla johanna

A big-mouthed Amazon predator that means business in any large cichlid setup.

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.

Belonesox belizanus

A surface-hunting predator built like a pike, from Central American wetlands.

Serrasalmus eigenmanni

A sleek Amazon predator that's surprisingly manageable for first-time piranha keepers.

Pseudotropheus socolofi

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

Stomatepia pindu

A critically endangered Cameroonian cichlid that turns jet black when spawning.

Serrasalmus humeralis

A fin-eating piranha with a surprisingly low-key reputation for people

Serrasalmus serrulatus

A solitary, fin-biting predator with a famously tangled identity.

Arapaima gigas

A living giant from the Amazon that breathes air like a lung fish.

Serrasalmus piraya

The largest piranha on earth, and legally banned in several countries.

Polypterus palmas polli

An ancient armored predator that breathes air and prowls the riverbed.

Potamotrygon hystrix

A flat, venomous predator that vanishes into the sand right before your eyes.

Tetraodon pustulatus

A rare African giant puffer from the Cross River, built for serious keepers.

Melanochromis vermivorus

A schooling mbuna that breaks the mold with genuine shoaling behavior.

Characodon lateralis

A rare Mexican livebearer with a complicated identity and real conservation value.

Channa bleheri

A rare snakehead small enough for a community tank, if you choose tankmates carefully.

Potamotrygon scobina

A rare freshwater ray that often gets misidentified and mis-sold in the trade.

Pygocentrus nattereri

The world's most notorious fish, and surprisingly misunderstood in the wild.

Amphilophus labiatus

A notoriously aggressive cichlid that somehow also becomes your best friend.

Trachemys scripta elegans

A long-lived turtle that outlasts most aquariums. And many life plans.

Protomelas taeniolatus

A Lake Malawi rock dweller sold under flashy trade names, worth every bit of the hype.

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.

Rineloricaria sp

A slender, peaceful whiptail with a mysterious origin and surprisingly easy breeding behavior.

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.