Pygmy Rainbowfish Tank Mates & Compatibility

Pygmy Rainbowfish

Melanotaenia pygmaea

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TemperamentMostly Peaceful (3/10)

Adult Size5 cm

Temperature22–28°C

Water TypeFreshwater Only

Swim ZoneSurface, Mid-level

StockingSchool of 6+

Stocking calculator

Compatible on paper, but will Pygmy Rainbowfish fit your setup?

Tank mates can still go wrong if the tank is too small, already full, or the water is a poor match. Add Pygmy Rainbowfish to the stocking calculator to check space, stocking pressure, and water needs before you add it.

Pygmy Rainbowfish

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Showing 1 - 24 of 601 Tank Mates

Pygmy Rainbowfish & Abei Puffer

Melanotaenia pygmaea · Pao abei

Pygmy Rainbowfish & Achara Catfish

Melanotaenia pygmaea · Leiarius marmoratus

Pygmy Rainbowfish & Adolfo Cory

Melanotaenia pygmaea · Corydoras adolfoi

Ideal Tank Mates

Pygmy Rainbowfish: Mostly PeacefulAdolfo Cory: Peaceful

Pygmy Rainbowfish & Adonis Pleco

Melanotaenia pygmaea · Acanthicus adonis

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAdonis Pleco: Aggressive

Pygmy Rainbowfish & Aequidens Jenaro Herrera

Melanotaenia pygmaea · Aequidens sp. 'Jenaro Herrera'

Pygmy Rainbowfish & Aequidens diadema (Diadem Cichlid)

Melanotaenia pygmaea · Aequidens diadema

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAequidens diadema (Diadem Cichlid): Semi-Aggressive

Pygmy Rainbowfish & Aequidens sp. Atabapo

Melanotaenia pygmaea · Aequidens sp. Atabapo

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAequidens sp. Atabapo: Semi-Aggressive

Pygmy Rainbowfish & Afra Cichlid

Melanotaenia pygmaea · Cynotilapia afra

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAfra Cichlid: Aggressive

Pygmy Rainbowfish & African Arowana

Melanotaenia pygmaea · Heterotis niloticus

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAfrican Arowana: Mostly Peaceful

Pygmy Rainbowfish & African Butterfly Cichlid

Melanotaenia pygmaea · Anomalochromis thomasi

Ideal Tank Mates

Pygmy Rainbowfish: Mostly PeacefulAfrican Butterfly Cichlid: Mostly Peaceful

Pygmy Rainbowfish & African Butterfly Fish

Melanotaenia pygmaea · Pantodon buchholzi

Pygmy Rainbowfish & African Clawed Frog

Melanotaenia pygmaea · Xenopus laevis

Pygmy Rainbowfish & African Dwarf Frog

Melanotaenia pygmaea · Hymenochirus boettgeri

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAfrican Dwarf Frog: Peaceful

Pygmy Rainbowfish & African Jewel Cichlid

Melanotaenia pygmaea · Hemichromis bimaculatus

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAfrican Jewel Cichlid: Aggressive

Pygmy Rainbowfish & African Knifefish

Melanotaenia pygmaea · Xenomystus nigri

Pygmy Rainbowfish & African Lungfish

Melanotaenia pygmaea · Protopterus annectens

Pygmy Rainbowfish & African Pike

Melanotaenia pygmaea · Hepsetus odoe

Pygmy Rainbowfish & African Pipefish

Melanotaenia pygmaea · Enneacampus ansorgii

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAfrican Pipefish: Peaceful

Pygmy Rainbowfish & Agassiz Cory

Melanotaenia pygmaea · Corydoras agassizii

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAgassiz Cory: Peaceful

Pygmy Rainbowfish & Agassiz's Dwarf Cichlid

Melanotaenia pygmaea · Apistogramma agassizii

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAgassiz's Dwarf Cichlid: Semi-Aggressive

Pygmy Rainbowfish & Ajamaru Rainbowfish

Melanotaenia pygmaea · Melanotaenia ajamaruensis

Ideal Tank Mates

Pygmy Rainbowfish: Mostly PeacefulAjamaru Rainbowfish: Peaceful

Pygmy Rainbowfish & Allen's Rainbowfish

Melanotaenia pygmaea · Chilatherina alleni

Ideal Tank Mates

Pygmy Rainbowfish: Mostly PeacefulAllen's Rainbowfish: Peaceful

Pygmy Rainbowfish & Alligator Gar

Melanotaenia pygmaea · Atractosteus spatula

Pygmy Rainbowfish & Alligator Pleco

Melanotaenia pygmaea · Pterygoplichthys scrophus

Possible with Caution

Pygmy Rainbowfish: Mostly PeacefulAlligator Pleco: Mostly Peaceful