If the ice came off your pond and you saw unsightly algae, you are not alone. The WLPR staff has encountered many ponds with rings of cold water algae surrounding ponds. Dane County APM plan Pond Management, All Articles, WLPR News & Updates From Cory Zickert, WLPR Owner and Senior Aquatic Manager All Articles Winter Pond Aeration All Articles, Pond Aeration, Winter Care