No worries, I mentioned it as adding bubblers/fountains tends to be the go to solution for the well meaning but uniformed. I get why people do it, it seems logical. But it’s another example of why common sense is not always the right answer.

A much better solution (after reducing the nutrient input that is) is to increase the number of large aquatic plants (macrophytes). These take up the nutrients which suppresses the algae growth.

Nope, that just encourages more algal growth. It’s the high nutrient levels that are the problem.