We have 4 khaki campbells that are 8 days (plus a couple maybe) in a large stock tank with wood shavings and pellets for litter. They are getting themselves a bit dirty and i would like to let them have a bath. i saw somewhere online the idea of using a paint roller tray for their first swim. i'm going to put it in the stock tank with them so that they can have access to their brooding light to warm up. i guess i am just wanting to verify they are not too young to let them swim a little - i plan to supervise and make sure they can get out ok and don't stay in too long.