TankmateChecker

Can koi live with zebra plecos?

Verdict

No

No. Koi and zebra plecos should not share a tank. Koi are coldwater animals (59–77°F); zebra plecos need 79–88°F. No temperature suits both.

Koi

Koi59–77°F · pH 7–8.5

Zebra pleco

Zebra pleco79–88°F · pH 6–7.5

What to watch

Deal breakerKoi are coldwater animals (59–77°F); zebra plecos need 79–88°F. No temperature suits both.
Watch outAt 24 inches a koi can swallow a small zebra pleco. Fast, alert fish usually stay out of reach.

What works

pH 7–7.5 suits both.

Water side by side

The ranges do not meet, so one of them would always be too warm or too cold.

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	Zebra pleco
Temperature	59–77 °F	79–88 °F
pH	7–8.5	6–7.5
Adult size	24.0 in	3.5 in
Minimum tank	Pond	30 gal
Temperament	Peaceful	Peaceful
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 zebra plecos

All zebra pleco tank mates

Questions

Can koi live with zebra plecos?

No. Koi and zebra plecos should not share a tank. Koi are coldwater animals (59–77°F); zebra plecos need 79–88°F. No temperature suits both.

What temperature suits both koi and zebra plecos?

None. Koi need 59–77 °F and zebra plecos need 79–88 °F, so the ranges do not meet.

What size tank do koi and zebra plecos need together?

A pond. Koi outgrow indoor tanks.