I have had nothing but problems with Aqua Forest products.  Had a bad dyno outbreak on one of my tanks after I started using the reef salt.  Really bad. 
 
Then I tried using some of the additives (reef build etc) on my other reef tank (never had a problem with dynos, cyno or algae before and since)  Using at half the recommended strength started to have what appeared to be dynos growing on the sand after about 3 weeks, could have been diatoms but didn't wait around to see, stopped using did a major water change and it went away.  This was about 6 months ago. 
 
I think each tank is different and it can cause problems on some tanks and for some tanks its the miracle drug. 
		
	
		
		
		
		
		
	
		
		
	
	
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