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I was out at the backwall Molokini with Mike Severns and towards the end of the dive I noticed the visibility suddenly getting worse. Watching really closely, I saw the reef give off a little smokelike puff. Then another, and another. Pauline was up in the water column and off the wall a ways monitoring some divers that were doing a safety stop and getting picked up. When she returned I pointed out the spawning. She throws a shaka and continues. I kept watching very, very closely trying to figure out what species of coral was spawning. But first the puffs were next to one type of coral, then another, then another. It didn't make any sense at all!I have been at the St. Anthony when something was spawning so much the bottom 20 feet looked blurry, <emphasis added.>