For ponds built by us, we have taken care of this for you. Our pumps circulate many times more than this requirement, constantly filtering your water. String algae removes nitrogen and phosphorus from the water, produces oxygen, is a natural food source for fish, provides habitat for fish fry and invertebrates, and softens the stones by giving them a natural moss like appearance. Just remove the excess when necessary. By following the pond management guide above, you should have no pea soup in your pond.
Planktonic algae can occur briefly at various stages in pond development.
Your pond should clear in 10 days or so after all the above steps and growing requirements have been put into place.