Hi all, as I am getting closer to completing the waterscaping, I want to place a log in the pond to make it more natural. Can I place any old log in there and should I let it float around or anchor it? How big should it be? I have an 8' x6' x'2' wildlife pond. I was going to drill a small hole in it and attach fishing line through the hole and use a small rock on the other end to anchor it. Any thoughts, ideas???