Slender Rainbowfish Tank Mates & Compatibility

Slender Rainbowfish

Melanotaenia gracilis

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TemperamentPeaceful (2/10)

Adult Size8 cm

Temperature22–28°C

Water TypeFreshwater Only

Swim ZoneSurface, Mid-level

StockingSchool of 6+

Stocking calculator

Compatible on paper, but will Slender 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 Slender Rainbowfish to the stocking calculator to check space, stocking pressure, and water needs before you add it.

Slender Rainbowfish

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Showing 1 - 24 of 735 Tank Mates

Slender Rainbowfish & Kabia rainbowfish

Melanotaenia gracilis · Glossolepis kabia

Ideal Tank Mates

Slender Rainbowfish: Peaceful Kabia rainbowfish: Peaceful

Slender Rainbowfish & Abei Puffer

Melanotaenia gracilis · Pao abei

Possible with Caution

Slender Rainbowfish: PeacefulAbei Puffer: Highly Aggressive

Slender Rainbowfish & Achara Catfish

Melanotaenia gracilis · Leiarius marmoratus

Possible with Caution

Slender Rainbowfish: PeacefulAchara Catfish: Semi-Aggressive

Slender Rainbowfish & Adolfo Cory

Melanotaenia gracilis · Corydoras adolfoi

Possible with Caution

Slender Rainbowfish: PeacefulAdolfo Cory: Peaceful

Slender Rainbowfish & Adonis Pleco

Melanotaenia gracilis · Acanthicus adonis

Possible with Caution

Slender Rainbowfish: PeacefulAdonis Pleco: Aggressive

Slender Rainbowfish & Aequidens Jenaro Herrera

Melanotaenia gracilis · Aequidens sp. 'Jenaro Herrera'

Possible with Caution

Slender Rainbowfish: PeacefulAequidens Jenaro Herrera: Semi-Aggressive

Slender Rainbowfish & Aequidens diadema (Diadem Cichlid)

Melanotaenia gracilis · Aequidens diadema

Possible with Caution

Slender Rainbowfish: PeacefulAequidens diadema (Diadem Cichlid): Semi-Aggressive

Slender Rainbowfish & Aequidens sp. Atabapo

Melanotaenia gracilis · Aequidens sp. Atabapo

Possible with Caution

Slender Rainbowfish: PeacefulAequidens sp. Atabapo: Semi-Aggressive

Slender Rainbowfish & Afra Cichlid

Melanotaenia gracilis · Cynotilapia afra

Possible with Caution

Slender Rainbowfish: PeacefulAfra Cichlid: Aggressive

Slender Rainbowfish & African Arowana

Melanotaenia gracilis · Heterotis niloticus

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Arowana: Mostly Peaceful

Slender Rainbowfish & African Butterfly Cichlid

Melanotaenia gracilis · Anomalochromis thomasi

Ideal Tank Mates

Slender Rainbowfish: PeacefulAfrican Butterfly Cichlid: Mostly Peaceful

Slender Rainbowfish & African Butterfly Fish

Melanotaenia gracilis · Pantodon buchholzi

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Butterfly Fish: Semi-Aggressive

Slender Rainbowfish & African Clawed Frog

Melanotaenia gracilis · Xenopus laevis

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Clawed Frog: Aggressive

Slender Rainbowfish & African Dwarf Frog

Melanotaenia gracilis · Hymenochirus boettgeri

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Dwarf Frog: Peaceful

Slender Rainbowfish & African Jewel Cichlid

Melanotaenia gracilis · Hemichromis bimaculatus

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Jewel Cichlid: Aggressive

Slender Rainbowfish & African Knifefish

Melanotaenia gracilis · Xenomystus nigri

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Knifefish: Semi-Aggressive

Slender Rainbowfish & African Lungfish

Melanotaenia gracilis · Protopterus annectens

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Lungfish: Highly Aggressive

Slender Rainbowfish & African Pike

Melanotaenia gracilis · Hepsetus odoe

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Pike: Aggressive

Slender Rainbowfish & African Pipefish

Melanotaenia gracilis · Enneacampus ansorgii

Possible with Caution

Slender Rainbowfish: PeacefulAfrican Pipefish: Peaceful

Slender Rainbowfish & Agassiz Cory

Melanotaenia gracilis · Corydoras agassizii

Ideal Tank Mates

Slender Rainbowfish: PeacefulAgassiz Cory: Peaceful

Slender Rainbowfish & Agassiz's Dwarf Cichlid

Melanotaenia gracilis · Apistogramma agassizii

Possible with Caution

Slender Rainbowfish: PeacefulAgassiz's Dwarf Cichlid: Semi-Aggressive

Slender Rainbowfish & Ajamaru Rainbowfish

Melanotaenia gracilis · Melanotaenia ajamaruensis

Ideal Tank Mates

Slender Rainbowfish: PeacefulAjamaru Rainbowfish: Peaceful

Slender Rainbowfish & Allen's Rainbowfish

Melanotaenia gracilis · Chilatherina alleni

Ideal Tank Mates

Slender Rainbowfish: PeacefulAllen's Rainbowfish: Peaceful

Slender Rainbowfish & Alligator Gar

Melanotaenia gracilis · Atractosteus spatula

Possible with Caution

Slender Rainbowfish: PeacefulAlligator Gar: Aggressive