I don't know if this is the right place for this thread or not but I assume it is. If I'm not in the right area please let me know. I have some small trees in my semi-aquatic frog tank and I would like to replant them in soil instead of gravel and moss so I have some potting soil left over frome when I potted a larger tree I bough but couldent use. So heres the question can I use potting soil in my frog terrarium or not I am woried about the chemicals in the soil such as fertilizer,plant food,etc. so if I can't use potting soil are there any good organic soils that would be good with my trees and frogs?