No, as they get older they stop doing complete body sheds, it will get extremely patchy. Some times it takes weeks for shed to let go, just let it do it's thing, and don't try to assist other then an occasional soak in warm shallow water. Make sure the water is not more than elbow deep and no hotter than lukewarm. If it feels hot to you its to hot to dunk them in. Also they use the same muscle group to walk and to breath. They can't do both at once, thats why the water shouldn't be above their elbows, don't want to risk drowning.