ok so around my apartments the landscapers cut off some fairly large branches the fell with no leaves on them they are really solid thick tree branches i cant tell you the exact tree but i was wondering if i did the the soaking boiling process with them will they be safe for my 80gal.. they dont have any sap and they arent from a pine tree.. i live in vegas so getting to a lake or pond for actual driftwood is kinda out the question..