Hi there, it may just be the time of year or he may be over-fed. Can you post pics of him + his set up ? Superworms are VERY easy to care for. Just get a medium sized plastic storage container [ the size of a large boot box or sweater box] dump in a container of oatmeal or wheat bran and cut up a sweet potato or large carrot in to a few big chunks. They will live at room temp. like that for months. Don't put supers in the fridge though or put a lid on the container.