Koi Tank Mates & Compatibility

Koi

Cyprinus rubrofuscus

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TemperamentPeaceful (2/10)

Adult Size80 cm

Temperature4–28°C

Water TypeFreshwater Only

Swim ZoneSurface, Mid-level, Bottom

StockingGroup of 3+

Stocking calculator

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

Koi

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Showing 1 - 24 of 735 Tank Mates

Koi & Kabia rainbowfish

Cyprinus rubrofuscus · Glossolepis kabia

Possible with Caution

Koi: Peaceful Kabia rainbowfish: Peaceful

Koi & Abei Puffer

Cyprinus rubrofuscus · Pao abei

Possible with Caution

Koi: PeacefulAbei Puffer: Highly Aggressive

Koi & Achara Catfish

Cyprinus rubrofuscus · Leiarius marmoratus

Possible with Caution

Koi: PeacefulAchara Catfish: Semi-Aggressive

Koi & Adolfo Cory

Cyprinus rubrofuscus · Corydoras adolfoi

Ideal Tank Mates

Koi: PeacefulAdolfo Cory: Peaceful

Koi & Adonis Pleco

Cyprinus rubrofuscus · Acanthicus adonis

Possible with Caution

Koi: PeacefulAdonis Pleco: Aggressive

Koi & Aequidens Jenaro Herrera

Cyprinus rubrofuscus · Aequidens sp. 'Jenaro Herrera'

Possible with Caution

Koi: PeacefulAequidens Jenaro Herrera: Semi-Aggressive

Koi & Aequidens diadema (Diadem Cichlid)

Cyprinus rubrofuscus · Aequidens diadema

Possible with Caution

Koi: PeacefulAequidens diadema (Diadem Cichlid): Semi-Aggressive

Koi & Aequidens sp. Atabapo

Cyprinus rubrofuscus · Aequidens sp. Atabapo

Possible with Caution

Koi: PeacefulAequidens sp. Atabapo: Semi-Aggressive

Koi & Afra Cichlid

Cyprinus rubrofuscus · Cynotilapia afra

Possible with Caution

Koi: PeacefulAfra Cichlid: Aggressive

Koi & African Arowana

Cyprinus rubrofuscus · Heterotis niloticus

Possible with Caution

Koi: PeacefulAfrican Arowana: Mostly Peaceful

Koi & African Butterfly Cichlid

Cyprinus rubrofuscus · Anomalochromis thomasi

Possible with Caution

Koi: PeacefulAfrican Butterfly Cichlid: Mostly Peaceful

Koi & African Butterfly Fish

Cyprinus rubrofuscus · Pantodon buchholzi

Possible with Caution

Koi: PeacefulAfrican Butterfly Fish: Semi-Aggressive

Koi & African Clawed Frog

Cyprinus rubrofuscus · Xenopus laevis

Possible with Caution

Koi: PeacefulAfrican Clawed Frog: Aggressive

Koi & African Dwarf Frog

Cyprinus rubrofuscus · Hymenochirus boettgeri

Possible with Caution

Koi: PeacefulAfrican Dwarf Frog: Peaceful

Koi & African Jewel Cichlid

Cyprinus rubrofuscus · Hemichromis bimaculatus

Possible with Caution

Koi: PeacefulAfrican Jewel Cichlid: Aggressive

Koi & African Knifefish

Cyprinus rubrofuscus · Xenomystus nigri

Possible with Caution

Koi: PeacefulAfrican Knifefish: Semi-Aggressive

Koi & African Lungfish

Cyprinus rubrofuscus · Protopterus annectens

Possible with Caution

Koi: PeacefulAfrican Lungfish: Highly Aggressive

Koi & African Pike

Cyprinus rubrofuscus · Hepsetus odoe

Possible with Caution

Koi: PeacefulAfrican Pike: Aggressive

Koi & African Pipefish

Cyprinus rubrofuscus · Enneacampus ansorgii

Possible with Caution

Koi: PeacefulAfrican Pipefish: Peaceful

Koi & Agassiz Cory

Cyprinus rubrofuscus · Corydoras agassizii

Ideal Tank Mates

Koi: PeacefulAgassiz Cory: Peaceful

Koi & Agassiz's Dwarf Cichlid

Cyprinus rubrofuscus · Apistogramma agassizii

Possible with Caution

Koi: PeacefulAgassiz's Dwarf Cichlid: Semi-Aggressive

Koi & Ajamaru Rainbowfish

Cyprinus rubrofuscus · Melanotaenia ajamaruensis

Possible with Caution

Koi: PeacefulAjamaru Rainbowfish: Peaceful

Koi & Allen's Rainbowfish

Cyprinus rubrofuscus · Chilatherina alleni

Possible with Caution

Koi: PeacefulAllen's Rainbowfish: Peaceful

Koi & Alligator Gar

Cyprinus rubrofuscus · Atractosteus spatula

Possible with Caution

Koi: PeacefulAlligator Gar: Aggressive