Aquariumpro
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Species

Browsing 486 species. Use the filters below to narrow down.

Macmaster's Dwarf Cichlid

Macmaster's Dwarf Cichlid

Fish

Apistogramma macmasteri

A compact Colombian cichlid with big personality and fascinating cave-breeding behavior.

Mahachai Betta

Mahachai Betta

Fish

Betta mahachaiensis

A nipa palm specialist from coastal Thailand with iridescent blue-green armor.

Mandor

Mandor

Fish

Betta mandor

A small, secretive Bornean mouthbrooder best kept in quiet, species-focused setups.

Mantis Shrimp

Mantis Shrimp

Invert

Odontodactylus havanensis

A Brazilian Atlantic crustacean that brings serious predator energy to the right tank.

Marbled Climbing Perch

Marbled Climbing Perch

Fish

Ctenopoma weeksii

A cryptic Congo predator that vanishes into leaf litter before your eyes.

Marbled Goby

Marbled Goby

Fish

Pomatoschistus marmoratus

A cryptic little sand-dweller from Europe's coasts, full of quiet personality.

Marbled Lungfish

Marbled Lungfish

Fish

Protopterus aethiopicus aethiopicus

An ancient African lungfish that breathes air and can outlast a drought.

Marbled Lyretail

Marbled Lyretail

Fish

Fundulopanchax marmoratus

A rare Cameroonian killifish with detailed marbled patterning and a preference for cool water.

Marine Betta

Marine Betta

Fish

Calloplesiops altivelis

A cave-dwelling mimic that fools predators by impersonating a moray eel.

Masked Puffer

Masked Puffer

Fish

Arothron diadematus

A bold Red Sea puffer with a dramatic masked face and serious bite.

Meklong Spiny Eel

Meklong Spiny Eel

Fish

Macrognathus meklongensis

A secretive Thai spiny eel that comes out of hiding when hunger calls.

Mekong Croaking Gourami

Mekong Croaking Gourami

Fish

Trichopsis schalleri

The tiny gourami that actually produces sounds to resolve conflicts and court mates.

Mekong Puffer

Mekong Puffer

Fish

Tetraodon suvattii

A bottom-hugging Mekong puffer that buries itself in river mud.

Mekong Tiger Perch

Mekong Tiger Perch

Fish

Datnioides undecimradiatus

A boldly barred Mekong predator with a long memory and a short temper.

Meteor Basslet

Meteor Basslet

Fish

Liopropoma susumi

A secretive reef cave-dweller with bold pinstripes and peaceful manners.

Mexican Barnacle Blenny

Mexican Barnacle Blenny

Fish

Acanthemblemaria macrospilus

A pint-sized reef blenny that claims abandoned barnacle shells as its castle.

Milkspotted Puffer

Milkspotted Puffer

Fish

Chelonodon patoca

A schooling puffer from mangrove estuaries that gets surprisingly large.

Mirror Basslet

Mirror Basslet

Fish

Pseudanthias pleurotaenia

A rare, large anthias that demands respect, and space, in the reef tank.

Mokele-mbembe Bichir

Mokele-mbembe Bichir

Fish

Polypterus mokelembembe

An ancient, armored predator from the Congo's murky depths.

Monkey Bay Cichlid

Monkey Bay Cichlid

Fish

Alticorpus mentale

A deep-water Malawi cichlid from sandy depths rarely seen in the hobby.

Moon Jellyfish

Moon Jellyfish

Invert

Aurelia aurita

striking open-water drifter that needs its own specialized kreisel tank.

Moore's Lamprologus

Moore's Lamprologus

Fish

Variabilichromis moorii

A Lake Tanganyika rockdweller with a fascinating family life and devious brood tactics.

Mosquitofish

Mosquitofish

Fish

Gambusia affinis

The notorious mosquitofish: tough, prolific, and not a friendly neighbor.

Mottled Bichir

Mottled Bichir

Fish

Polypterus weeksii

A living fossil from the Congo with a swim bladder that doubles as a lung.

Multifasciatus

Multifasciatus

Fish

Neolamprologus multifasciatus

Possibly the world's smallest cichlid, big attitude packed into a tiny shell.

Mystery Wrasse

Mystery Wrasse

Fish

Pseudocheilinus ocellatus

A secretive reef wrasse with bold colors and a talent for disappearing.

Nantaiensis Goby

Nantaiensis Goby

Fish

Rhinogobius nantaiensis

A feisty Taiwanese stream goby that rewards patient, experienced keepers.

Narrow-bellied Seahorse

Narrow-bellied Seahorse

Fish

Hippocampus angustus

A spiny Western Australian seahorse with a distinctively slender profile.

Narrow-lined Puffer

Narrow-lined Puffer

Fish

Arothron manilensis

A bold, beak-toothed puffer that thrives from mangroves to lagoon reefs.

Neon Goby

Neon Goby

Fish

Elacatinus oceanops

A tiny cleaner fish that runs its own reef spa service.

Nile Bichir

Nile Bichir

Fish

Polypterus bichir

A living fossil that breathes air and moves like an eel.

Nilgiri Mystus

Nilgiri Mystus

Fish

Hemibagrus punctatus

A rare, spot-flanked Indian catfish built for serious catfish specialists only.

Nkhomo-benga Peacock

Nkhomo-benga Peacock

Fish

Aulonocara baenschi

A peacock cichlid with a curved snout and brilliant gold coloration from Lake Malawi.

Ocellated Labyrinth Fish

Ocellated Labyrinth Fish

Fish

Ctenopoma muriei

A compact African labyrinth fish that punches above its weight in personality.

Ocellated Puffer

Ocellated Puffer

Fish

Takifugu ocellatus

A surprisingly peaceful puffer with a wild lifecycle from river to reef.

Ocellated pufferfish

Ocellated pufferfish

Fish

Leiodon cutcutia

A pufferfsh from Asian rivers and canals with a surprisingly long lifespan.