The Lake Doctors, Inc. is a 35-year-old full service aquatic management firm devoted to providing a variety of services for lakes, ponds and other bodies of water. Services include weed and algae control, fountains, aeration systems, fish stocking, mosquito control, water testing, beneficial aquatic plants, mitigation services and water clarification. Serving all of North Florida including the counties of Duval, St. Johns, Putnam, Clay, Baker, Nassau, Columbia and Flagler, plus S. Georgia.