You also need to think about what could be feeding this particular algae. Stepping up detritus removal, making sure your RODI is 0 TDS, doing extra water changes, keeping skimmers clean and working well, etc are all things that I would be looking at for getting nutrients down. You may also consider starting to run GFO to help suck up extra phosphates. I've battled algae of all sorts like the entire 5 years I've had my tank and these are things that worked the best for me.
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