If your dosing through your ATO how do you ensure its even mixed throughout your entire top off supply?  Do you keep a powerhead in you ATO? 
 
Also how much are you guys dosing in your ATO water?  I have roughly a 10 gallon top off supply that gets used up once per week.  I really only need approx 3 drops a day to keep phosphate at .03 or lower. 
		
	
		
		
		
		
		
	
		
		
	
	
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