Ok so I've been dealing with green hair algae for a very long time, and I've used algae fix I have an urchin I've done a million blackouts, but I've recently gotten a few acropora and when I finally turned on the lights after this last black out my one acro had lost some color, and the blackouts would keep the GHA at bay but I don't want to harm my acros. I do also run GFO. Is there any creatures that work really good? Like I said I have an urchin and I also have an emerald crab. I've heard some snails are good at it but idk which ones

