Species
Browsing 819 species. Use the filters below to narrow down.
Mayan Cichlid
FishCichlasoma urophthalmus
A brackish-tolerant bruiser that can handle conditions few other cichlids can.
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.
MEGA Orange Dwarf Cichlid (Apistogramma cacatuoide) - Tank Bred
FishApistogramma cacatuoide
A selectively bred cockatoo cichlid dripping in vivid orange from dorsal to tail.
Mekong Bumblebee Goby
FishBrachygobius mekongensis
A pint-sized brackish goby with bold banded markings and a big personality.
Mekong Ricefish
FishOryzias mekongensis
A tiny Mekong native with vivid fin markings and surprisingly easy breeding habits.
Melon Barb
FishHaludaria fasciata
An underrated Indian barb that rewards you with vivid male rivalry displays.
Mendezi Dwarf Cichlid
FishApistogramma mendezi
A blackwater dwarf cichlid with a surprisingly gentle nature and fascinating cave-breeding habits.
Merry Widow
FishPhallichthys amates
A low-key Central American livebearer that thrives where flashier fish struggle.
Metallic Topminnow
FishGirardinus metallicus
A livebearer from Cuba with a glinting metallic sheen and real historical quirks.
Mexican Dwarf Crayfish
InvertCambarellus patzcuarensis
Tiny, peaceful, and full of personality. The dwarf crayfish that plays well with others.
Mexican tetra
FishAstyanax mexicanus
The cave fish that lost its eyes and gained extraordinary senses.
Micro Glassfish
FishDanionella translucida
One of the tiniest freshwater fish alive, and surprisingly easy to breed.
Midas Cichlid
FishAmphilophus citrinellus
A bold, intelligent cichlid that recognizes its owner and demands respect in return.
Mini Chocolate Gourami
FishParasphaerichthys lineatus
A tiny Burmese labyrinth fish with some of the most unpredictable breeding behavior in the hobby.
Mini-piranha
FishSerrasalmus sanchezi
A misidentified mini-piranha relative with razor teeth and a fiery red throat.
Minor Tetra
FishHyphessobrycon minor
A peaceful little tetra from Guyana that's seldom seen in the hobby.
Molly
FishPoecilia sphenops
A livebearer classic that can thrive from freshwater all the way to full marine conditions.
Moonspot Licorice Gourami
FishParosphromenus linkei
A pint-sized blackwater gourami with head-down courtship displays unlike any other.
Mosquito Fern / Fairy Moss (Azolla caroliniana)
PlantAzolla caroliniana
A fast-spreading floating fern that doubles as a nursery roof for shrimp and fry.
Moth Catfish
FishHara jerdoni
A moth-like micro catfish from Indian hill streams, best kept in groups.
Mozambique tilapia
FishOreochromis mossambicus
One of the world's most invasive fish, sold as food and kept as a curiosity.
Mullya Garra
FishGarra mullya
A hardy Indian stream fish with a sucker disc built for fast-moving water.
Mustard Squeaker
FishSynodontis albolineata
A small, community-friendly squeaker from Cameroon and Gabon that rarely reaches the trade.
Myanmar Redfin 2
FishOreichthys sp. "Myanmar Redfin 2"
A tiny, feisty shoaler from Myanmar with a bold caudal blotch and plenty of personality.
Mystery Snail
InvertPomacea bridgesii
A peaceful, algae-grazing snail that comes in a rainbow of shell colors.
Namak
FishAphanius arakensis
A rare Iranian killifish relative worth keeping for conservation as much as curiosity.
Nana Rasbora
FishMicrodevario nanus
Tiny Myanmar schooler with a bold dorsal-fin blotch and big personality in small packages.
Ndobhoi Cichlid
FishChalinochromis sp. "Ndobhoi"
A blotch-patterned Tanganyikan rock dweller with fascinating colony breeding behavior.
Nemacheilus guentheri
FishMesonoemacheilus guentheri
A pebble-stream loach from India with famously unpredictable mood swings.
Nemacheilus petrubanarescui
FishMesonoemacheilus petrubanarescui
A shy Indian stream loach best kept in groups to bring it out of hiding.
Neon Goby
FishStiphodon ornatus
A tiny, colorful stream goby from Sumatra that rewards patient observers.
Neon Highfin Barb
FishOreichthys crenuchoides
A tiny barb with a sail-like dorsal fin and surprisingly complex social dynamics.
Neon Tetra
FishParacheirodon innesi
The fish that turned millions of people into aquarium keepers.
Nerite Snail
InvertNeritina natalensis
The algae-scrubbing snail that won't overrun your tank.
Network Pleco
FishHypancistrus sp. "L066"
A boldly patterned pleco with a variable maze-like network across its body.