Man it’s been a slow and steady battle but I’d say my biggest weapon in the fight against hair algae is my turbo snail, got him and some other snails from reef cleaners and he had my display pretty spotless in less than a week. Threw him in my sump and he cleared that out in 3 days, he munched on even longer strands. I had some in the display that I wanted him to clean up so I put him back in then just put him back in my sump yesterday to get rid of some hair algae that grew back. All in all I’d say it’s under control now! Honestly I dialed in my skimmer to skim more and just have been making sure I don’t feed an excess amount. I feed everything in my tank but I try not to let leftovers decay. It’s a balance because I know my LPS and SPS is loving those nitrates because they’re pretty vibrant haha but I’m also using chaeto in my sump at the moment also, running on 12 hr cycle