Interesting how the bottom DO got down near 6 a couple of times this past fall. That's plenty of oxygen, and obviously there is even more above that. However, even in your groundwater-fed, moderately fertile pit pond, there obviously is some decomposition happening. Aquatic plants dying? Phytoplankton? Tree leaves?


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From Bob Lusk: Dr. Dave Willis passed away January 13, 2014. He continues to be a key part of our Pond Boss family...and always will be.