| AJinNY - try taking the cover off the tank, see what the temp stablizes at. If it is still high, add a fan to blow onto the sump. These will help with evaporative cooling. My tank was having issues this summer - temps reaching almost 84ºF, and I have for fans blowing out of my canopy, no cover on my tank, and a 6 inch fan on the sump. As soon as I added a 9 inch fan to blow on my sump (even kept the 6inch fan off), I no longer had heat issues. I evaporated more water, but my temp was stabilized.
On the plate coral, is the skeleton showing where you said the green is gone?
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~Nikki~
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