Hello, I got a freshwater crayfish today from my friend. He rescued it from a local petshop one year ago when the crayfish was only about 1 nch. He had this crayfish in his goldfish tank and now the crayfish is about 5-6 inches, too big and too aggressive for his tank, so he gave it to me today. It's a pretty cool crayfish with red claw and tail. Very strong and active. I put it in its own 20 gallon tank but couldn't figure out what type it is. Maybe a marble crayfish? or similar kind? or something else? I took a few pics and post here, hopefully you guys know what it is. Thanks for any input!