I bought some hornworms last a reptile expo as a treat for my tree frogs. Quite a few of them have already gotten too big for my frogs and I'm giving them to a friend for her beard. I still have a lot of hornworms left in the container and I'm almost out of food. I read that you can give them tomatoes. Does this cause any ill effects on frogs or other herps? Does it effect the hornworms? Thanks!