I'm considering getting some FBT's for my empty 15 gallon (wide) tank. I had it set up as a terrarium for my pacman who has since moved, so right now it has a couple of inches of eco earth and several live plants. I've read that a half and half set up is good, which is what I have for my newts, but how about if I were to embed one or two large water dishes into the coconut fiber instead? I'd probably have a small sponge filter, if not I"d do daily water changes.

Just curious if that substrate would even work with them and also if more water would be better?