Hi, I have had a 65 gallon reef tank for a while now about 5 years. I have 2 kessil lights 160WE that run on max intensity. For years i've battled hair algae and recently eradicated it I have not seen it since. Although now I have a lot of coraline and a brownish algae on the glass it makes the tank look really foggy. It makes the tank look really dirty and I do not know how to get rid of it except for scraping it off. But the issue about scraping is that it comes back no matter what. If anybody knows any chemicals or CUC to get rid of this I would love to hear about them. Here's a picture of the tank it is MUCH cleaner now but that brown stuff on the glass stays I will try to point it out in the picture. I annotated the image to point it out you can see the algae all over the glass with some weird pink spots.
Thanks.
Thanks.