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Species

Browsing 367 species. Use the filters below to narrow down.

Marbled Goby

Marbled Goby

Fish

Oxyeleotris marmorata

A motionless giant that eats anything fitting in its enormous mouth.

Marbled Synodontis

Marbled Synodontis

Fish

Synodontis schoutedeni

A beginner-friendly Congo catfish with bold marbled patterning that deepens with age.

Maulbrüter Apisto

Maulbrüter Apisto

Fish

Apistogramma barlowi

The only Apistogramma that mouthbroods. Or doesn't, depending on its mood.

Mayan Cichlid

Mayan Cichlid

Fish

Cichlasoma urophthalmus

A brackish-tolerant bruiser that can handle conditions few other cichlids can.

Mccosker's Flasher

Mccosker's Flasher

Fish

Paracheilinus mccoskeri

A tiny reef wrasse where the males put on a color show like no other.

Mcculloch's Anemonefish

Mcculloch's Anemonefish

Fish

Amphiprion mccullochi

A rare island endemic with a bold personality that punches well above its size.

MEGA Orange Dwarf Cichlid (Apistogramma cacatuoide) - Tank Bred

MEGA Orange Dwarf Cichlid (Apistogramma cacatuoide) - Tank Bred

Fish

Apistogramma cacatuoide

A selectively bred cockatoo cichlid dripping in vivid orange from dorsal to tail.

Mekong Bumblebee Goby

Mekong Bumblebee Goby

Fish

Brachygobius mekongensis

A pint-sized brackish goby with bold banded markings and a big personality.

Mexican Dwarf Crayfish

Mexican Dwarf Crayfish

Invert

Cambarellus patzcuarensis

Tiny, peaceful, and full of personality. The dwarf crayfish that plays well with others.

Mini Chocolate Gourami

Mini Chocolate Gourami

Fish

Parasphaerichthys lineatus

A tiny Burmese labyrinth fish with some of the most unpredictable breeding behavior in the hobby.

Molly Miller

Molly Miller

Fish

Scartella cristata

A tidepool blenny with a wild mohawk and an appetite for algae.

Money Cowrie

Money Cowrie

Invert

Cypraea moneta

A living relic once traded as currency across cultures worldwide.

Moth Catfish

Moth Catfish

Fish

Hara jerdoni

A moth-like micro catfish from Indian hill streams, best kept in groups.

Mozambique tilapia

Mozambique tilapia

Fish

Oreochromis mossambicus

One of the world's most invasive fish, sold as food and kept as a curiosity.

Mullya Garra

Mullya Garra

Fish

Garra mullya

A hardy Indian stream fish with a sucker disc built for fast-moving water.

Mustard Squeaker

Mustard Squeaker

Fish

Synodontis albolineata

A small, community-friendly squeaker from Cameroon and Gabon that rarely reaches the trade.

Nassarius Snail

Nassarius Snail

Invert

Nassarius vibex

A tireless sand-sifting scavenger that keeps reef substrate clean and aerated.

Nemacheilus guentheri

Nemacheilus guentheri

Fish

Mesonoemacheilus guentheri

A pebble-stream loach from India with famously unpredictable mood swings.

Nemacheilus petrubanarescui

Nemacheilus petrubanarescui

Fish

Mesonoemacheilus petrubanarescui

A shy Indian stream loach best kept in groups to bring it out of hiding.

Neon Goby

Neon Goby

Fish

Stiphodon ornatus

A tiny, colorful stream goby from Sumatra that rewards patient observers.

Network Pleco

Network Pleco

Fish

Hypancistrus sp. "L066"

A boldly patterned pleco with a variable maze-like network across its body.

Nile squeaker

Nile squeaker

Fish

Synodontis schall

The unpredictable bruiser of the Synodontis world, not for community tanks.

Ocellifer Catfish

Ocellifer Catfish

Fish

Synodontis ocellifer

A hardy West African catfish with bold spots and a long, distinctive adipose fin.

One-spot Eartheater

One-spot Eartheater

Fish

Satanoperca lilith

A rarely traded eartheater with a single bold flank spot and surprising social depth.

Onespot Squeaker

Onespot Squeaker

Fish

Synodontis notata

A daytime-active catfish with a bold personality to match its bold spot.

Orange-fin Stiphodon

Orange-fin Stiphodon

Fish

Stiphodon maculidorsalis

A tiny Indonesian stream goby with bold dorsal markings worth seeking out.

Orange Head

Orange Head

Fish

Geophagus sp. "Orange Head"

A vividly capped cichlid that rewards patient keepers with fascinating mouthbrooding family life.

Orchid Island Goby

Orchid Island Goby

Fish

Rhinogobius lanyuensis

A tiny island goby from one of Taiwan's most remote corners.

Orinoco

Orinoco

Fish

Andinoacara sp. "Orinoco"

A mellow Orinoco cichlid that pairs easily and rewards patient breeders.

Orinoco sailfin catfish

Orinoco sailfin catfish

Fish

Pterygoplichthys multiradiatus

A dinosaur-sized algae grazer built for decades of service in large tanks.

Otjikoto Tilapia

Otjikoto Tilapia

Fish

Tilapia guinasana

A critically endangered sinkhole cichlid with wild color variation and devoted parental care.

Oyapock Eartheater

Oyapock Eartheater

Fish

Geophagus camopiensis

A rarely seen eartheater with elaborate mouthbrooding behavior and real personality.

Pacific Fat Sleeper

Pacific Fat Sleeper

Fish

Dormitator latifrons

A chunky estuarine predator that breathes air and swallows anything it can fit in its mouth.

Panda Loach

Panda Loach

Fish

Yaoshania pachychilus

Bold panda stripes as a juvenile, but adults fade to something far subtler.

Pantanal Eartheater

Pantanal Eartheater

Fish

Satanoperca pappaterra

A sand-sifting cichlid that fearlessly charges piranhas in the wild.

Paradise Threadfin

Paradise Threadfin

Fish

Polynemus paradiseus

Feathery pectoral threads and calm grace from the rivers of South Asia.