I think we’ve found the formula. I’ve ordered more of one and am going to go after the other.

Meanwhile I’m proofing for Jane, and the pond is requiring less and less care. It went all night with the filter in place and didn’t clog.

What I’m using, for those of you who have ponds: Interpet Pond Balance, at recommended strength (binds a nutrient that hair algae needs, but other plants don’t, plus helps condition water) and Microbelift Sludge Remover, which makes the pond look like peatwater for a couple of days, but sets bacteria to noshing down on the bottom crud. I have no UV filter any more; and nothing but regular circulation, the filter pads which take out debris and particulates, and these 2 things. The fish are ever so much happier. If we can maintain it with this alone, life will be good.