Brown Fuzzy Algae
I have a 75g. reef with below tank sump. I Have had a great looking tank for about two years now. In the last 3 months I have a brown fuzzy algae on my rock and it has spread to my sand bed. You can peel a layer off the sand bed. 1 week ago I did a 25g. water change and may see a small change for the better. Does anyone have an idea as to what it is or how to get it out of my tank?
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