Crayfish Id Help

[Shiki]

Hi Everyone.
Noob back to ask questions again.

Can anyone help me identify what type of grays these are? Check the photos. One of each.

Got them at Petco, one had no pincers and missing a leg or two and i kinda felt sorry for him and took him and they didn't charge me for it.

They are both in the same tank and totally ignore each other and just about everything else except the ghost shrimp.

Thanks in advance

 

[Nils]

Look like marbled crayfish or marmokrebs, they don't need a partner to reproduce, they are self cloning, so be prepared to deal with a whole ton of fry. You could make some $$$$ though. Need at least 10 gallons for one and then you'll want to make distinguished territories for every other one you add.

 

[livefishguy124]

genaraly you dont want to take the ones that are all beat up, when they molt they may grow back lost limbs though.