UNDERGROUNDAQUARIUM
Crayfish

Dwarf Mexican Crayfish

Cambarellus patzcuarensis

Also known as: CPO, Orange Dwarf Crayfish

A peaceful, bright-orange dwarf crayfish small enough for a community — unlike its giant cousins.

Water
Freshwater
Temperature
64–78°F
pH
7–8
Hardness
6–20 dGH
Max size
2 in
Min tank
10 gal
Temperament
Semi-aggressive
Social
Solitary
Swim level
Bottom
Diet
Omnivore
Care level
Intermediate
Lifespan
2-3 years
Breeding
Egg-layer
Suitability
Common
Origin
Lake Pátzcuaro, Mexico

The CPO is one of the few crayfish gentle and small enough to keep with fish and even shrimp, though it may catch the occasional slow or sick tankmate. It molts regularly and needs hiding spots and calcium for its shell.