OK guys - I'm a little out in front on this one. I cut a one foot piece from a freshly cut black/post oak, put it in a clear plastic tub and within 6 hours the water was turning black. The next morning the water was real black. NO OAKS in this pond unless they are root wads 1-2 years old. I'll back off some of the structure. Sounds like you guys think I may have too much. I'll cut it back and add if I need to later on. Thanks for the help fellas. JD