Can crayfish live with tinfoil barbs?

Verdict
Yes, with care

Yes, with care. Crayfish and tinfoil barbs can share a tank, but watch one thing. Tinfoil barbs grow to 12 inches and need 125 gallons, far more than a tank set up for crayfish.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–77°Crayfish 65–77°Tinfoil barb 72–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Crayfish 6.5–8Tinfoil barb 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Crayfish · 5 inTinfoil barb · 12 in0"2"4"6"8"10"12"
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

CrayfishTinfoil barb
Temperature65–77 °F72–80 °F
pH6.5–86.5–7.5
Adult size5.0 in12.0 in
Minimum tank20 gal125 gal
TemperamentAggressivePeaceful
Swims atBottomMiddle
GroupOne per tankGroups of 5+
DietOmnivoreOmnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for tinfoil barbs

All tinfoil barb tank mates

Questions

Can crayfish live with tinfoil barbs?

Yes, with care. Crayfish and tinfoil barbs can share a tank, but watch one thing. Tinfoil barbs grow to 12 inches and need 125 gallons, far more than a tank set up for crayfish.

What temperature suits both crayfish and tinfoil barbs?

72–77 °F. Crayfish need 65–77 °F, tinfoil barbs need 72–80 °F.

What size tank do crayfish and tinfoil barbs need together?

At least 125 gal, set by the tinfoil barb. Add space for each extra fish.