yup - I dropped my tunze magnet in the sand and voila - fuzzy magnet. 
The iron particles in the sand are fine per dr. ron shimek...who I consider to be a good source. That stated, I'd avoid dropping your mag-float in there as reeflections mentioned. Here's his specific reply to me that I re-posted in my tale: http://www.njreefers.org/joomla/index.php?option=com_smf&Itemid=26&topic=12816.msg130634#msg130634
	
		
			
		
		
	
			
			The iron particles in the sand are fine per dr. ron shimek...who I consider to be a good source. That stated, I'd avoid dropping your mag-float in there as reeflections mentioned. Here's his specific reply to me that I re-posted in my tale: http://www.njreefers.org/joomla/index.php?option=com_smf&Itemid=26&topic=12816.msg130634#msg130634
					
				