Name these Crayfish!

They look like marbled crays to me, but i'm in no way a crayfish expert

I thought that as a possibility. They were from petsmart and arrived with their feeders. They do not normally sell them.

They have a tinge of blue in the claws and joints.

They are greyish and don't seem to be "brown" like a lot of marbles I've seen. I dunno, they are fun to watch in their tank, though.

Hmm, about how big are they?

2ish inches.

Sent from my DINC

They're just plain old river crayfish, the importers put them in with the goldfish to eat the poop. The claws will get much bigger, they're still growing back. (they remove the claws so they dont poke the goldfish in transit)

They will eat everything though once their claws are fully functional again (they look 2 molts away from being full again), including fish, snails, shrimp, other crays, plants if they're hungry enough, lol.

I had a few for a while, I adopted them from petsmart too. Mine got to about 5 inches before I had to get rid of them, and careful, when they get that big their little pinchers aren't so cute.

pretty cool critters. What are you planning on doing with em? Feeders?