From GHA to brown algae

saullman

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Just as I struggled to get rid of green hair algae, now I am getting brown algae. Is this normal? Should I treat the tank with something to get rid of it or let it run its course.

Some background on my tank. It's a 2 yr old 45 gal JBJ rimless which is lightly stocked. 3 fish and a shrimp. Have about 8 corals. All LPS and softies. My CUC consist of snails. Nassarius, turbos, and trochus.

I tested my tank parameters on 4-5. 0 phosphates, nitrates usually run around 20 ppm, 0 ammonia, PH is 8.0, salinity is 1.023, temp stays constant at 78.3. I do water changes every other week.

Oh, on top of everything else. I just lost my black clown. What is going on inside my tank?
2b43d7897cc70b5b1f31cf6afccb6914.jpg
 
Get a closer pic of the brown algae
 

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