So my new crayfish was just transferred to my 65 gallon and immediately began to molt. He got almost all of the molt completed on his own, but a piece on his head and back remained. He was not moving around much and not sure if he was eating. After about 2 days of him being like that i decided he wasnt going to finish on his own so took him out to examine him. one of his eyes had clouded over, and it doesnt seem like he can see out of it, he lost a claw during the molt as well, I helped by very gently assisting him in removing the old shell, (which had become very soft and dark), and put him back in the tank. I noticed he has a spot on the side where it looks like growth was stunted due to the old shell as well. He is currently just sitting in the middle of the tank not moving much but he attempted to eat a pellet. I dont have experience with crayfish, so is there a chance he will spring back, or would it be time to put him down out of his misery? Thanks!