TankmateChecker

Can koi live with bichirs?

Verdict

Yes

Yes. Koi and bichirs get along in the same tank. Both are fine at 72–77°F. Plan on at least Pond.

Koi

Koi59–77°F · pH 7–8.5

Bichir

Bichir72–82°F · pH 6.5–7.5

Why it works

Both are fine at 72–77°F.
pH 7–7.5 suits both.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

	Koi	Bichir
Temperature	59–77 °F	72–82 °F
pH	7–8.5	6.5–7.5
Adult size	24.0 in	12.0 in
Minimum tank	Pond	75 gal
Temperament	Peaceful	Semi-aggressive
Swims at	All levels	Bottom
Group	Groups of 3+	Alone or in pairs
Diet	Omnivore	Carnivore

Better tank mates for koi

All koi tank mates

Better tank mates for bichirs

All bichir tank mates

Questions

Can koi live with bichirs?

Yes. Koi and bichirs get along in the same tank. Both are fine at 72–77°F. Plan on at least Pond.

What temperature suits both koi and bichirs?

72–77 °F. Koi need 59–77 °F, bichirs need 72–82 °F.

What size tank do koi and bichirs need together?

A pond. Koi outgrow indoor tanks.