So far I haven't had a problem with the toads ingesting anything, but I can tell you that I am really sick of fishing debris out of the water!! As well, from watering the plants-which are still alive amazingly!-I have water build up underneath. I saw on another thread of including a syphoning tube which would have been great to think of orginally. Oh well. I am planning on changing the substrate and adding another plant or two to add to ground cover. I would welcome any and all suggestions. My goal is to get rid of the plastic plant I have floating in the water for them.