I would remove the sand. If you have to medicate, having sand can complicate dosing due to adsorption (depending on the medication used).
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Chris
Hope is not a strategy.
Display Tank: DSA 105 w/36gal sump/fuge · 2x MP40wES PHs · 2x Radion Gen2 · Apex w/PM2 · Fish · Corals · Rock · Sand · Water
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