Are there woods that you want to stay away from if selectiong your own pieces in the "wilderness" for your tanks? I have some pieces of malasian which are beautiful, but I was thinking of looking around for oak tree branches. Oaks have some really gnarled and twisted branches, and the bark looks amazing.I want something with substance, but with a little less bulk than the malasian pieces. I am Toying with theidea of making arches and protruding inclines (up from the geavel) and covering them with moss and TONS of narrowleaf java fern. I want a haven for my Discus to feel secure under, but with a 50 gal pent, I want to be able plant things in the back of the tank and still see them. I want it too look Full, but still create a great use of Open space. I hope this isnt too confusing.