Thanks for the advice, I don’t remember what I mixed it at last fall. I only sprayed a small section for a test because it was still hot down here and I didn’t want to take a chance of killing it all and have low O2 in my pond when it decomposed.

Am I reading your surfactant amount right of .16 to .64 oz per gallon? Thats not very much and would be hard to measure but I can do the math and figure it out.

The watershield is all around the pond along the edges out about 10-15ft in the worse spots on the deeper end and worse on the shallower end.

When should I spray again, I was thinking this spring when it first starts growing. Since the water will stil be cool I feel better about spraying everything as it starts growing.

The pond is about 3/4 acre and 8ft deep in the middle and tapers uo to the shore for ost of it and about 5ft deep on the other end.