Mostly the trouble is with filamentous algae.
I have tried barley straw with little success.
The copper sulfate granules are easy because I just scatter some in the area's the algae is growng from.
I will try the cutrine-plus, I will put some in a pump up prayer (diluted with about 9 parts water to cutrine) and spay-squirt it on the algae under water. Is that the best way?
