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			 anyone has any reviews or used this kind of probe to monitor the calcium in their reef? 
		
	
		
		
		
		
		
	
		
		
	
	
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			#2  
			
			
			
			
			
		 
		
		
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			 from the reviews I've read, you have to calibrate it a lot, which takes a lot of time.  It is also not recommended as a continuous use system that you leave in your reef all the time. 
		
	
		
		
		
		
			
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	RSM 250. Clownfish, Fox face, Blue tang, Yellow tang, Kole tang, Clown tang, Coral beauty angel, French Angel, splendid dottyback. CUC, softies, lps, sps.  | 
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