You will always have elements enriching your pond with nutrients from leaf litter, wildlife and fish poo. I have a 1/4 acre pond and rake blown leaves out of my pond in the fall and I try to keep waterfowl out. I’ve done algae raking in the past and I would rather not deal with it. I run aeration May to November and put bacteria and aqua shade in as needed. I think you will find there is not a one time fix that’s going to keep your pond enjoyable. The tilapia will add more bio load to your pond too.

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