Hi Rick!

Rick wrote

Should I brush the algae of the rocks on waterfall? When I do a lot of it
washes into the pond. Dose this spread the algae?

Yes, it spreads it. Better to wind it around a long handled brush or
child's garden rake and remove it.




The algae on the rocks is dark green slime. No matter how I try, more goes
in to the pond then on the brush. So Leave it OR???



Thanks Rick!