My corals have been doing really good since the dino crash. BUT I'm starting to worry because I started seeing this string algae popping back up (last 2 pics) I've been running a fluval uv sterilizer at night. I'm going to try to put some under a microscope tonight to get a more accurate identification. Maybe I can figure out what I'm doing wrong. I just had a diatom bloom in both tanks as well.
Why do i keep getting this algae?? Can someone tell me how to get rid of it permanently? Ive been running a UV sterilizer 12 hrs a night on and off for a month. I will have to get an up to date water test this evening.

