Minimal photo period for corals?

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jworth

Jack Dempsey
MFK Member
Sep 9, 2008
3,287
3
36
Indianapolis
I think I may be fighting Dino's and need to cut light down for a bit. They may not be dinos but I want this nuisance gone. Its just a fuzzy area on some rocks, nothing crazy but it does produce oxygen bubbles. I will try to load pics later.

I was thinking 4 hours halides and 5 hours actinics. Also treating with GFO and have a bit of carbon in my sump as well.
 
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