are you using rodi water ? running gfo ? I would be vacuuming the sand while doing weekly water changes , remove as much as you can manually . Stay consistent with your water changes and dosing . Stay away from adding different chemicals/aids to try and get rid of . But if you are using rodi , make sure your filters and membrane is good . 
		
	
		
		
		
		
			
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				stuff happens when you go outside 
Im a hustler / I'll hop in the ocean / sell a whale a splash
			 
		
		
		
		
	
		
		
	
	
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