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			#2  
			
			
			
			
			
		 
		
		
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			 As others stated give it time... I just recently used it and saw a major difference in one day, maybe I am an exception. However by day 2-3 it should be gone. 
		
	
		
		
		
		
			
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	![]() Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite) Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO) Type of Aquarium: mixed reef (SPS & LPS) with fish Dosing: Mg, Ca, Alk  | 
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			#3  
			
			
			
			
			
		 
		
		
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			 +1, I've had it take 2 days to notice, 3rd day it's gone 
		
	
		
		
		
		
			
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	Crap happens, that's why they sell toilet paper in 48 roll packs!  | 
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			#4  
			
			
			
			
			
		 
		
		
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			 So even when you let it sit for a few days, do you still do your water changes 48 hours like they recommend? 
		
	
		
		
		
		
		
	
		
		
	
	
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			#5  
			
			
			
			
			
		 
		
		
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			 I always do, yes. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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			#6  
			
			
			
			
			
		 
		
		
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			 For sure, you want to do the water change. Don't risk your tank inhabitants by leaving it in there. 
		
	
		
		
		
		
			
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	Ian~  | 
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			#7  
			
			
			
			
			
		 
		
		
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			 So if there is still cyano 24 hours after the water change should I dose again? 
		
	
		
		
		
		
		
	
		
		
	
	
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			#8  
			
			
			
			
			
		 
		
		
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			 After 24 hrs about half my cyano was gone. All after the 48.  
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
	Skimmer still going nuts after a 20% water change. Putting some fresh carbon in now and hopefully skimming normally by tomorrow. Really impressed by how well this stuff worked. My corals showed no signs of stress. I did notice some of my sponges look a little deflated tho.  |