So I am wondering what kind of branches I can put into my planted tank. I have access to a Fig tree, an Ash tree, and a Palo Verde. I also have access to some sort of willow tree and then anything growing behind my parent's house in Phoenix, Arizona. Does anyone have any idea on what types of wood will work? Anything I need to be worried about? Which type of plants leech toxins into the water and which ones just kind of fall apart over time? I have searched the net a bit but couldn't find much. Thanks guys.