So I heard that thise Eco Earyh Bricks cause problems in amphibians. Will this hurt my toad because it's the substrate I'm using right now. I mean, I just laid out moss all over the toad cage to try and get my toad to be out and active like in her ten gallon, but she still burrows in the moss. Also, ever since I moved her into a twenty gallon she hasn't been hand feeding.