Thanks for the info! I am working on cleaning up around the pond by removing the large dead tree and several of the smaller maples so hopefully that will allow some vegetation to grow and less leaves in the pond as this will be an ongoing problem with this pond. The maple seeds alone covered the pond so bad 2 weeks ago that I couldn't throw a small spinner with out it snagging seeds! Oh the joys of a woodland pond! Oh well I'm having a blast messing with it and learning a lot!