Efforts to improve water quality in eutrophic ponds often involve implementing changes to watershed management practices to reduce external nutrient loads. While this is required for long-term recovery and prevention, eutrophic conditions are often sustained by the recycling of internal nutrients already present within the water body. In particular, internal phosphorus loads have been shown to delay lake recovery for decades. Thus, in-situ pond management techniques are needed that not only reduce external nutrient loading over the long-term but also mitigate the effects of internal nutrients already present.