We put the crickets in a separate tank and lowered him in..he did nothing so we got a pair of tongs. Our vet suggested we kill the cricket first by smashing its head. He started opening his mouth for us and we got a real small one in !! We tried to get a second one but he wasn't being as cooperative. We will try again a little later. He still doesn't look like hes shedding as well as he should, but there are no more green spots and hes turning his beautiful vibrant green.