I gave Galli his first supers the other night--he only ate 2, but he hasn't pooped yet. It's been 3 days and he hasn't pooped. He's active and seems normal. Is he impacted?
Is he on a loose substrate? If he's not than I can't imagine he's impacted. I'd check your temps to make sure they are ok, becuase if they're not right they don't digest properly and that might explain it.