Care guides for freshwater fish, marine species, and invertebrates — including water parameters, tank requirements, and where to buy.
6,160 species
Moonlight Gourami
Trichogaster microlepis
Morrow's Whiptail Catfish
Rineloricaria morrowi
Mortenthaleri Pencilfish
Nannostomus mortenthaleri
Mosaic Cory
Corydoras concolor
Mosaic Dwarf Cichlid
Ivanacara adoketa
Mosaic Pleco L240
Hypancistrus sp. L240
Moscow Blue Female Guppy
Poecilia reticulata var.
Moscow Blue Guppy Male
Poecilia reticulata
Moscow Green Guppy Male
Poecilia reticulata
Moscow Purple Guppy Male
Poecilia reticulata
Mosquito Rasbora
Boraras brigittae

Mosquito Rasbora (Boraras urophthalmoides)
Boraras urophthalmoides
Mosquitofish
Gambusia affinis
Mosquitofish (Gambusia affinis)
Gambusia affinis
Moss Green Tiger Barb
Puntigrus tetrazona var. (moss green)
Mosura Crystal Red Shrimp
Caridina cf. cantonensis
Moth Catfish
Hara jerdoni
Motoro Stingray
Potamotrygon motoro
Motoro Stingray Potamotrygon motoro
Potamotrygon motoro
Motoro x Leopoldi Hybrid Stingray
Potamotrygon motoro x leopoldi
Mottled Ctenopoma
Ctenopoma oxyrhynchum
Mottled Loach
Acanthocobitis urophthalmus
Mottled River Stingray
Potamotrygon tatianae
Mouth-brooding Betta (Betta pugnax)
Betta pugnax
Mouthbrooder Apisto
Apistogramma sp. 'Maulbruter'
Mouthspot Cory
Corydoras osteocarus
Mpimbwe Frontosa
Cyphotilapia frontosa
Mucipu Tetra
Creagrutus mucipu
Mud Spiny Eel
Macrognathus aral
Mud Sunfish
Acantharchus pomotis
Mudskipper
Periophthalmus barbarus
Multi Delta Guppy Male
Poecilia reticulata var.
Multi-banded Tetra
Hollandichthys multifasciatus
Multi-Pore Linckia Star
Linckia multifora
Multi-spotted Cory
Corydoras multimaculatus
Multibar Pygmy Angelfish (Centropyge multispinis)
Centropyge multispinis
Multibarred Coral Goby (Gobiodon rivulatus)
Gobiodon rivulatus
Multicolor Fancy Betta Male
Betta splendens
Multifasciatus Shell Dweller
Neolamprologus multifasciatus
Multifasciatus Stream Loach
Schistura multifasciata
Multispinosa Pike Cichlid
Crenicichla multispinosa
Mummichog
Fundulus heteroclitus
Muraena Kuhli Loach
Pangio muraeniformis
Murray River Rainbowfish
Melanotaenia fluviatilis
Mustard Spot Pleco L069
Hemiancistrus sp. (L069)
Mustelinus Heptapterus
Heptapterus mustelinus
Myanmar Badis
Dario hysginon
Myer's Hoplo Catfish
Lepthoplosternum pectorale
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