Aspen bedding

I'll take a look under his hides when I take him out to handle. You can normally spot it pretty easily. Aspen's white(ish), but you can tell the discrepancies.

It's easy to spot when it's still wet - the aspen gets darker brown in color instead of yellowish. But, that spot gets yellowish again when it dries, so it would be harder.

I usually go by the urates and take a section of the aspen around the urate with it. Then I change out the bedding every week - sometimes 2 weeks if the beach gets too irresistible and we decide to chuck our chores.