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It seems you have cyanobacteria and maybe dinoflagellate growth which you are trying to remedy by vacuuming it from the sand surface. Correct? If so, your thread title might not be catching the attention of the appropriate forum members.
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I wouldn't use any "removers" for nutrients, just do a water change to bring them down.Lights go on at 7am and goes off at 7pm nutrients are a bit high but putting remover in for them