I ordered two different sizes of Mopani wood today for my gray tree frog habitat. It is aquarium grade and under the description says to soak the wood for several hours. I am assuming this is to prevent water discoloration in an aquarium. Do I need to do this step or not? Also, I would like to add a live plant but want to keep it in its own pot, instead of planting it directly in the substrate. I would like to go for a more forest looking set up rather than tropical one. Any suggestions?