They shed when they shed lol. Boople usually goes every 2 mo. If you increase food size you may see sooner. Every beep is different. How does his belly look? Normal or pinkish? Does he look a little duller or ashy as at all? Eyes clear? Usually first sign is a pinkish belly, followed by ashy or dull colored skin, then they go,in blue, then eyes clear and they shed out after. This can take anywhere from a week to two. 6-10 days average. Once you see then go dull up your humidity in the 70's.