Hello everybody, I have a cage for my guys with a wire bottom and a tray that surrounds the entire bottom of the cage. The tray is about 2 in. deep. My question is would it be harmful for the boys if I put something like Hartz flea powder for rugs in the tray? I don't know if the fumes would be bad for them. There is no way for them to come in direct contact with the powder, but I don't want them breathing anything bad for them. Just a question. I like to find new ways to kill fleas. I'm thinking about putting some baking soda in the bottom also. Thank You, Doug, Pauly, and Odie [Posted in FML issue 1231]