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			#1  
			
			
			
			
			
		 
		
		
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			 I just added my live rock and sand, and it's starting to clear up, should I be testing anything in the water other than salinity while this is all cycling, and should I do water changes during the cycling period? 
		
	
		
		
		
		
			
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	180 gallon reef tank with 80 gallon sump, 2 External overflow boxes ,3 drilled returns,Vertex 100 skimmer, Jager 250 watt heater, Stealth titanium 150 watt heater, 3-500 GPH return Aqua Globe pumps and 2 corelia power heads My tank so far  | 
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			#2  
			
			
			
			
			
		 
		
		
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			 You need to test for Ammonia, and Nitrite to start with and write these numbers down to keep track of them. I test the first few days to get an idea of where the numbers are at. Then you can test once or twice a week. When both these numbers are at 0, then test for Nitrate. When all three are at 0 then the tank is cycled. Then you can slowly add one fish at a time. I do not do water changes during the cylce period, but some do. If you do it will prolong the cycle though. 
		
	
		
		
		
		
		
	
		
		
	
	
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			#3  
			
			
			
			
			
		 
		
		
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			 You really only need to test for nitrite, the rest are optional. Nitrite will start to climb in the beginning and eventually reach a high and start to drop down near the end of the cycle. Once nitrite is zero your tank is cycled. 
		
	
		
		
		
		
		
	
		
		
	
	
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