Can crayfish live with peacock cichlids?

Verdict
Yes, with care

Yes, with care. Crayfish and peacock cichlids can share a tank, but watch one thing. They only share 76–77°F. Keep the heater set there and steady.

CrayfishCrayfish65–77°F · pH 6.5–8 Peacock cichlidPeacock cichlid76–82°F · pH 7.8–8.6

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–77°Crayfish 65–77°Peacock cichlid 76–82°
The green band is the temperature range both can live in.
456789Both: 7.8–8Crayfish 6.5–8Peacock cichlid 7.8–8.6
The green band is the pH both tolerate.

Size to scale

Crayfish · 5 inPeacock cichlid · 6 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

CrayfishPeacock cichlid
Temperature65–77 °F76–82 °F
pH6.5–87.8–8.6
Adult size5.0 in6.0 in
Minimum tank20 gal55 gal
TemperamentAggressiveSemi-aggressive
Swims atBottomMiddle
GroupOne per tankGroups of 4+
DietOmnivoreCarnivore

Better tank mates for crayfish

All crayfish tank mates

Better tank mates for peacock cichlids

All peacock cichlid tank mates

Questions

Can crayfish live with peacock cichlids?

Yes, with care. Crayfish and peacock cichlids can share a tank, but watch one thing. They only share 76–77°F. Keep the heater set there and steady.

What temperature suits both crayfish and peacock cichlids?

76–77 °F. Crayfish need 65–77 °F, peacock cichlids need 76–82 °F.

What size tank do crayfish and peacock cichlids need together?

At least 55 gal, set by the peacock cichlid. Add space for each extra fish.