Hahahahha-I dont know-but Im going to find out-after I smoked them out yesterday. I took them to the pool with me...I thought about letting them out of their cage, but decided against it, as I didnt want to spend my time monitoring them...But their little cage is big enough-so I slowly dip them in the pool-! .I think I need to get them swimming lessons-needless to say, I found out-little men cant swim...hahahah but I had fun trying!!!!