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Old 01/10/2008, 07:20 PM
rishma rishma is offline
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Join Date: Jan 2002
Location: MS
Posts: 369
I think the light stays on. The reef crest mode does change speeds, you should be able to hear a difference in the motor. These are slow changes. Several others have posted similar questions. There is no alternating flow on reef crest or lagoon, it is just a random variation in speed. Check the Ecotech forum. I think they have a graph that shows how the speed varies with the two modes.