A friend showed me this awhile ago.
http://www.reefecosystems.com/reef-facts/water-chemistry-and-parameters/temperature/
" Moved On Join Date: May 2003Location: Parma, OHPosts: 262 New research is showing that consistently keeping temps 78 degrees or below helps to prevent RTN and STN situations. The research shows that above 78 degrees there is an exponential growth of vibrio bacteria levels the higher the temps get."
" A lower temperature will also lower the metabolic rate of coral and in turn they will use less oxygen. The down side of a lower metabolic rate is less growth. But then again in a mature tank less growth is an advantage. Another side effect of lower temp is a theory of better color in SPS with lower temps. "
"A rapid rise in temperature will cause the metabolic rate the symbiotic algae in the coral to increase. The symbiotic algae will then produce greater amounts of oxygen. Too much oxygen in the tissue is toxic to the coral and the coral reacts by expelling the symbiotic algae into the water."
^ thats why iodine Dose can help acclimate lighting which bond with oxygen to prevent too much oxygen which prevent bleaching lol.
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