Algae attacking growth tips?
So I don't have a camera capable of taking a decent picture, but I'll try to describe the algae I'm seeing as best I can.
It's only occurring in my rotalas after I trimmed them and replanted the tops. If this is what the growth tip looks like, \ / , the algae is a dark green spot nestled right where new leaves should be coming from. Looks like this \o/, where the o is a little spot of algae. It's only right at the growth tip, on none of the older leaves.
Anybody have an idea what this could be and how I can treat it?