I have 3 Green Tree Frogs. When I got them they had a Dirt substrait with Some type of moss over that, as I read more on here about how to care for them I read that they may eat the moss and gain an obstruction and that I needed to use the coconut substrait. So I went and bought that and started over. My question is do I need to put something over the coconut fiber or is that fine? Although it leaves my frogs terribly dirty. LOL Also it looks to me like when they eat they still may eat the coconut stuff also. Is this harmful to them or is it ok? Also since my last post asking about my frogs being brown 2 of them have turned mostly green and the other is on his way also.