thanks for the reply , it has taken me a little to get back to the forum
I am going to change the little rocks, i had them in when they were tadpols because they came from where i got the babys , i wanted it to be a bit like where they was born. But i indeed do not want to hurt my frogs in any way. so i am gonig to change them. I just had to fill that water bit in a little till i got more It was a after thought after i did it about frogs maybe eating them