Can crayfish live with clown loaches?

Verdict
Yes, with care

Yes, with care. Crayfish and clown loaches can share a tank, but watch one thing. They only share 77°F. Keep the heater set there and steady.

CrayfishCrayfish65–77°F · pH 6.5–8 Clown loachClown loach77–86°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 77°Crayfish 65–77°Clown loach 77–86°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Crayfish 6.5–8Clown loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Crayfish · 5 inClown loach · 8 in0"1"2"3"4"5"6"7"8"
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

CrayfishClown loach
Temperature65–77 °F77–86 °F
pH6.5–86–7.5
Adult size5.0 in8.0 in
Minimum tank20 gal75 gal
TemperamentAggressivePeaceful
Swims atBottomBottom
GroupOne per tankGroups of 5+
DietOmnivoreOmnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for clown loaches

All clown loach tank mates

Questions

Can crayfish live with clown loaches?

Yes, with care. Crayfish and clown loaches can share a tank, but watch one thing. They only share 77°F. Keep the heater set there and steady.

What temperature suits both crayfish and clown loaches?

77–77 °F. Crayfish need 65–77 °F, clown loaches need 77–86 °F.

What size tank do crayfish and clown loaches need together?

At least 75 gal, set by the clown loach. Add space for each extra fish.