So I went hunting around for information about them. My dad always said to make sure that the lizards ate them and they didn't get into the tank that they would turn into beetles. I can't remember if he said it would hurt the lizards though. During my search I found a page on breeding them. My dad used to breed cochroaches so that he could feed them to the lizards he breed. Anyways in case anyone is interested the following link is a really good resource for breeding meal worms.
http://www.nabluebirdsociety.org/mealworm.htm
