I have an adult grey tiger salamander we call Freddy aka Bubs. He got out twice already and I was lucky enought to find him quickly; he now has a secure lid on his tank. I put a black sheet over the tank and he seemed more calm. When part of the sheet is lifted he tries and tries to get out? Would it be better to put black construction paper or something close on the outside and a light on to keep him calm? We are upgrading his tank as we find out more information. I just dont want him stressed. Either way he wanders around through out the day/night but he only tries repeatidly to get out when its not covered. One more question here. He loves nightcrawlers and crickets are very hard to come by because of my isolated location in Montana. I make sure to not over feed him but his diet doesnt seem balanced and he is a picky eater. Will worms be enough nutrition for him to survive a month or so at a time???