I compared hime to my other male that is the same size. I've only had him for about 5 days now. I dont know how old his spine injury is, but it doesnt seem to bother him at all. He still gets around fine and has a tight grip when he raps around my hand. I tired taking him away from the female and put him in an a differnt tank of mine but he went nuts so i put him back with the female. They were feeding him a small rat every 2 weeks, he's big enough to eat a Med to large. They also had him in a 20 gallon tank with the female. He is now in a 55 gallon.