A thought came across my mind while i observed the weather this week.....since we are trying to mimic a natural enviorment wouldnt it be good for our tanks if the lights were to be off or dimmed for a couple of days as if it were cloudy around the area of a natural reef? As a couple of rainy days would pass by corals and fish are not under direct sunlight. Would it benefit our tanks in anyway? How long can Clams and Corals go with dimmed lights or just actinics on per say....? This might help get rid of nuisance algae in the process.