Can ghost shrimp live with crayfish?

Verdict
No

No. Ghost shrimp and crayfish should not share a tank. Crayfish hunt shrimp. Adult ghost shrimp will be eaten.

Ghost shrimpGhost shrimp65–82°F · pH 7–8 CrayfishCrayfish65–77°F · pH 6.5–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 65–77°Ghost shrimp 65–82°Crayfish 65–77°
The green band is the temperature range both can live in.
456789Both: 7–8Ghost shrimp 7–8Crayfish 6.5–8
The green band is the pH both tolerate.

Size to scale

Ghost shrimp · 1.5 inCrayfish · 5 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

Ghost shrimpCrayfish
Temperature65–82 °F65–77 °F
pH7–86.5–8
Adult size1.5 in5.0 in
Minimum tank5 gal20 gal
TemperamentPeacefulAggressive
Swims atBottomBottom
GroupGroups of 3+One per tank
DietOmnivoreOmnivore

Better tank mates for ghost shrimp

All ghost shrimp tank mates

Better tank mates for crayfish

All crayfish tank mates

Questions

Can ghost shrimp live with crayfish?

No. Ghost shrimp and crayfish should not share a tank. Crayfish hunt shrimp. Adult ghost shrimp will be eaten.

What temperature suits both ghost shrimp and crayfish?

65–77 °F. Ghost shrimp need 65–82 °F, crayfish need 65–77 °F.

What size tank do ghost shrimp and crayfish need together?

At least 20 gal, set by the crayfish. Add space for each extra fish.