I have a five month old crestie that seems to be terrified of crickets. I have tried on numerous occasions to feed them to him. Each time he will crawl to the top of the plants in his enclosure and stay there. I have left them in there for a few hours at a time and the same results each time. He will feed on CGD and baby food, but is not growing at a very good rate. Has anyone ever seen this? Is there anything I can do to assist him?