I have API, Elos, Red Sea and Saliferet test kits.  Ive been most happy with saliferet kits.  When i first got the Red Sea I thought it was great and loved the look of the kit but then found out the magnesium was actually way off on the kit and was actually a bad batch number.  Elos kits are really nice as well but I have still found the most consistant results with Saliferet kits and they are easy to use as well. 
		
	
		
		
		
		
		
	
		
		
	
	
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