Hi, I would really watch when your feeding that she doesn't get one of those small rocks in her mouth and ends up swallowing it. I'm not saying change it but when you feed your frog I would stand there and watch it eat till the feeders are gone. When I first got my firebellies back in the day I had them setup on rock like you, while one over shot a cricket one day and ended up getting a rock in her mouth. Luckily I was there and scooped him up and was able to push under his mouth and got it out. Again not saying change your whole setup but I would be care full and pay close attention when feeding.