I usually just use water and let them swim around in it, but is there a way to clean clean them when they go through their poo? I've heard of people using additives (soap, oils, etc., etc.) but my guess is that soap would be an irritant.

Also, around shedding time, I've heard of people using additives to make the process easier. Is there any legitimacy to this claim or should I not waste my money on such a product?

Thanks for responses guys: )