Blue Dwarf Crayfish

Not a species I currently keep.

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Shipping size will vary based on what I find in the tank at the time.  I tend to ship small ones though as they ship and acclimate better (1cm or so).  I do not sex my crayfish.

Dwarf Blue Crayfish are a beautiful dwarf crayfish that stays small and doesn't eat plants! The males tend to be aggressive with each other and lost claws or legs are common but will regrow as the crayfish molt.

Dwarf Crayfish often react to movement around their tank by facing you with their claws out and will sometimes even walk towards you. They will go after shrimp or fish but they don't seem very sucessful at catching the shrimp. I haven't kept them with fish but I imagine they would go after them, especially at night when the fish sleep.

When mating the male flips the female over and pins her using his claws. Mating often lasts for a while. The females carry their eggs just like dwarf shrimp. Young cray's will canablize each other so you should provide them with a lot of hiding places. PVC pipe or Cholla Wood works well as hiding places for young crayfish and those who have recently molted.


They are a light to dark blue/grey color depending on the individual and their mood.


Common Name Blue Dwarf Crayfish
Scientific Name Cambarellus patzcuarensis sp. (I think)
Adult Size 3.0-6.5 CM or 1.2-1.5 inches
Water Temp 15°-27° C or 60°-80° F
pH Range 7.0-8.0
Water Hardness Medium-Hard
Fresh or Salt Water Freshwater
Larval Stage None. Young hatch as miniature versions of the adults
Difficulty Easy
Egg/Saddle Color Brown
Behavior Semi-aggressive

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