Quote:
Originally Posted by Rippin
One other thing to add to the mix - if you change in the range of +40%, then many of your corals that are near the top are out of water. For a short time, this does not pose a problem, but if you're slow to refill would this cause added stress? Especially if the water change was initiated by a problem? I would think that with such large water changes the MH lights are turned off so that it doesn't cook the corals at the top.
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There are corals in the ocean that spend a few hours out of the water at low tide they get cooked by the sun and rained on, but yes If I'm going to be more then half an hour then i will turn the MH lights off