Koi Care Guide

Cyprinus rubrofuscus

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Bioload Score

200000

PeacefulModerateFreshwater
Max Size
76.0 cm / 30.0"
Temperature
15–25°C (59–77°F)
pH Range
6.5 – 7.5
Min Tank Size
2000L (528 gal)
Min Group Size
2 fish
Tank Level
Bottom
Origin
Southeast Asia
Temperament
Peaceful
Difficulty
Moderate
Breeding Difficulty
Moderate

Diet

Omnivorous. Koi fish eat a variety of foods, including pellets, flakes, vegetables, and live or frozen treats like brine shrimp and bloodworms.

Community Compatibility

Koi are often kept in outdoor ponds with other Koi or similarly sized and peaceful pond fish, such as Goldfish and Shubunkin. They are not suitable for a typical home aquarium due to their large size.

Good to Know

Koi require a substantial amount of water and space. They can grow quite large, so it's essential to have a suitable pond or tank. Also, they are sensitive to water quality, so regular maintenance and water testing are necessary to maintain proper conditions. Koi can be long-lived, so be prepared for a long-term commitment in their care. Additionally, protect them from predators like birds and raccoons if you keep them in outdoor ponds.

Gender Differences

Males are often smaller and slimmer than females, especially during the breeding season.

Stock Koi in Your Tank

Use our free stocking calculator to see if Koi fits your aquarium