So,Iam makeing vivarium's for my newts and salamanders and also my tree frog,and what I want to know is what soil/substrate should I use for live tropical plants that dose'nt have fertilizer's since they harm the amphibians sentitive skin,is zoomed eco-earth or exo-terrs plantation soil good for live tropical plants,I don't know what live plants are going in there yet but what substrate is good for growing most live tropical plants?Have you used this substrate?