If someone has black algae, does it affect the CC like regular algae does?
I noticed a few black spots on my steps yesterday and was curious because my CC is now at 0. The few spots are black, round and almost look like mold. On a couple of them, the other area of the circle is lighter in color than the center. Almost like it fades to a transparent on the outer area.
I took a few pictures that I will post tonight but figured I would go ahead and ask a few questions to get things started.