I found some driftwood on the beach of Lake Superior Michigan, and I'm wondering how to prepare it for use in a tank I'm going to setup this this fall. I've read that some soak the wood to remove tannins, but this wood is very bleached out. Plus, they are good size pieces. One piece is the root part of a small tree (looks really cool) and the other two are quite large (I'm planning a large tank around 90-125 gallons).