The numbers for me have been quite consistant since I started dosing 2 part. 
 
I use Salifert test kits but I have Hagen (ugh!) backups that I confer with if I have to. 
 
I test about every 20 - 25 days now, but before it was once per week. 
 
I'm hoping that by moving my dosing entry point for Alk that I can stop this problem.  The Acros that this has happened to were doing awesome before and it's a shame to see what's happened. 
		
	
		
		
		
		
			
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				Mark...
  
290g Peninsula Display, 425g total volume.  Setup Jan 2013.
			  
		
		
		
		
	
		
		
	
	
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