wow! thats a great petstore! I doubt the anthirium is annoying them, many frog enthusiasts use it. I dont yet i only have pothos, zebra plant and heart leaf in with mine... along with a waterfall. However i hope switching them to the petstore home helps. If not you are getting pretty close to the skinny frog phase. Keep me updated! i want to try help as much as i can and i enjoy hearing from you to know how they are doing...mine are still being handfed weekly