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			#17  
			
			
			
			
			
		 
		
		
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			 Thank you guys for all your thoughts.  I am now running the tank with Kalk and CaCl2 solution additions only.  The Alk dosing pump is still unplugged.  The Ca levels are good (400-420) and the Alk is somewhat stable too (8.6-9 dKH).   
		
	
		
		
		
		
		
	
		
		
	
	
	Yesterday I checked nitrates and phosphates too and they were both zero. I did notice that other acro colonies are STNing from the base up. I just wish I knew what is causing this. Watching colonies STN helplessly is painful....  |