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Originally Posted by Carpentersreef
FWIW, you can provide your corals with too much light.
Read the section starting on pg 326 in Borneman's book Aquarium Corals, Selection, Husbandry and Natural History.
Pg 334 specifically mentions oxygen toxicity, caused by overlighting.
Also, I have the same lighting system that Wai's has, and I have seen corals in his tanks that were not doing so well either. Bleached, to be specific. I have bought some of those bleached corals and they have all come back to full color.
Remember that sometimes corals are in a dark box for extended periods of time during shipping. That can cause bleaching and other methods of coral death. (RTN, complications from sitting in their own waste and excretions)
Danny knows what he is doing when it comes to corals.
Mitch
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did you read the new articke about lights and bleaching, they are now saying that if your coral bleaches from brighter lights it is due to a lack of current, and that you should increase the current when aclimating corals to brighter light to prevent bleaching.
I got to wondering if this is why I have never bleached a coral as I have lots of flow in my little tank, but who knows as when I put a new coral in I just plop it where it looks good and not worry about the light. except for the deep water acro I got.
Steve
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