I have this brown filament type algae that grows around the base of my torches and mushrooms.
Probably not a lot of flow there. Also grows in tufts on the back of the display.
32G Biocube - water is good. Phosphates at 4PPB - Alk around 9 - zero nitrates
I keep brushing it off but I am dreaming about a longer term solution.
Started using ROWA about 4 weeks ago - made a huge difference in the phosphate level and the amount of algae on the glass.