Species
Browsing 393 species. Use the filters below to narrow down.
Mbu Puffer
FishTetraodon mbu
A Congo giant that demands respect, space, and a very sturdy tank.
Mcculloch's Anemonefish
FishAmphiprion mccullochi
A rare island endemic with a bold personality that punches well above its size.
Media Luna Pupfish
FishCualac tessellatus
A rare Mexican pupfish with a conservation story worth getting behind.
Mediterranean Killifish
FishAphanius fasciatus
A rare Mediterranean killifish that rewards dedicated keepers with fascinating, constant activity.
Mekong Tiger Perch
FishDatnioides undecimradiatus
A boldly barred Mekong predator with a long memory and a short temper.
Midas Cichlid
FishAmphilophus citrinellus
A bold, intelligent cichlid that recognizes its owner and demands respect in return.
Mini-piranha
FishSerrasalmus sanchezi
A misidentified mini-piranha relative with razor teeth and a fiery red throat.
Mirror Basslet
FishPseudanthias pleurotaenia
A rare, large anthias that demands respect, and space, in the reef tank.
Moore's Lamprologus
FishVariabilichromis moorii
A Lake Tanganyika rockdweller with a fascinating family life and devious brood tactics.
Mosquitofish
FishGambusia affinis
The notorious mosquitofish: tough, prolific, and not a friendly neighbor.
Mottled Catfish
FishAmarginops ornatus
A sleek Congo predator with ornate markings and serious attitude toward tankmates.
Mozambique tilapia
FishOreochromis mossambicus
One of the world's most invasive fish, sold as food and kept as a curiosity.
Multicolour Dottyback
FishOgilbyina novaehollandiae
A vivid reef dweller from the Great Barrier Reef with a bold dual-tone look.
Narrow-lined Puffer
FishArothron manilensis
A bold, beak-toothed puffer that thrives from mangroves to lagoon reefs.
Ndobhoi Cichlid
FishChalinochromis sp. "Ndobhoi"
A blotch-patterned Tanganyikan rock dweller with fascinating colony breeding behavior.
Nile Tilapia
FishOreochromis niloticus niloticus
One of the world's most adaptable fish, but a challenging aquarium resident.
Nilgiri Mystus
FishHemibagrus punctatus
A rare, spot-flanked Indian catfish built for serious catfish specialists only.
Northern Purplespotted Gudgeon
FishMogurnda mogurnda
A bold Australian bottom-dweller with real personality and surprising breeding behavior.
Northern Snakehead
FishChanna argus
A true apex predator that can survive days out of water. And is banned in many countries.
Oblique-lined Dottyback
FishCypho purpurascens
A bold little reef predator that punches well above its weight in attitude.
Ocellaris Clownfish
FishAmphiprion ocellaris
The iconic reef fish that lives fearlessly among stinging anemone tentacles.
Ocellated Featherback
FishChitala ornata
A prehistoric river predator that grows far larger than most tanks can handle.
Ocellated Snakehead
FishChanna pleurophthalma
Bold ocellus markings and predatory charisma from the peat swamps of Borneo.
Ocellate Freshwater Stingray
FishPotamotrygon motoro
A disc-shaped apex predator that can learn to recognize its keeper.
Ogre Catfish
FishAsterophysus batrachus
A gulper catfish that can swallow prey nearly twice its own size.
One-spot Eartheater
FishSatanoperca lilith
A rarely traded eartheater with a single bold flank spot and surprising social depth.
Onespot Squeaker
FishSynodontis notata
A daytime-active catfish with a bold personality to match its bold spot.
Orange Chromide
FishEtroplus maculatus
The only cichlid native to India, with a fascinating cleaning-fish side hustle.
Orangefin Anemonefish
FishAmphiprion chrysopterus
A large, bold anemonefish from the wide Pacific with serious territorial attitude.
Orangestriped Triggerfish
FishBalistapus undulatus
One of the reef's most aggressive personalities packed into a boldly patterned body.
Orinoco Eartheater
FishBiotodoma wavrini
A slender eartheater that thrives in groups and rewards patient, experienced keepers.
Pacific Fat Sleeper
FishDormitator latifrons
A chunky estuarine predator that breathes air and swallows anything it can fit in its mouth.
Painted Frogfish
FishAntennarius pictus
A master of disguise that hunts with a built-in fishing rod.
Painted Sailfin Catfish
FishLeiarius pictus
A majestic sailfin catfish only suited to those with truly enormous tanks.
Palmqvist's Nothobranch
FishNothobranchius palmqvisti
A brilliantly colored killifish that lives fast in seasonal African pools.
Panther Puffer
FishTakifugu pardalis
A boldly patterned marine puffer with a personality bigger than its tank.