The best way to reduce algae is to add the following for every two square feet of pond surface:
The ideal amount of direct sunlight is 6-8 hours. In full sun, try to keep exposure to one half to three quarters of an hour. If you need to cool the water, try covering the surface with floaters and lilies.
If you need tips or help to open your pond, please come in and see us. We are located at 140 West State Street, Route 202, Granby, MA 01033.