Can crayfish live with kribensis?

Verdict
Yes

Yes. Crayfish and kribensis get along in the same tank. Both are fine at 75–77°F. Plan on at least 30 gal.

CrayfishCrayfish65–77°F · pH 6.5–8 KribensisKribensis75–80°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–77°Crayfish 65–77°Kribensis 75–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Crayfish 6.5–8Kribensis 6–7.5
The green band is the pH both tolerate.

Size to scale

Crayfish · 5 inKribensis · 4 in0"1"2"3"4"5"6"
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

CrayfishKribensis
Temperature65–77 °F75–80 °F
pH6.5–86–7.5
Adult size5.0 in4.0 in
Minimum tank20 gal30 gal
TemperamentAggressiveSemi-aggressive
Swims atBottomBottom
GroupOne per tankAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for kribensis

All kribensis tank mates

Questions

Can crayfish live with kribensis?

Yes. Crayfish and kribensis get along in the same tank. Both are fine at 75–77°F. Plan on at least 30 gal.

What temperature suits both crayfish and kribensis?

75–77 °F. Crayfish need 65–77 °F, kribensis need 75–80 °F.

What size tank do crayfish and kribensis need together?

At least 30 gal, set by the kribensis. Add space for each extra fish.