I used to run carbon/gfo on my tank long time ago but not since I moved a year ago. So I added it back last weekend and on a 2nd day water became cloudy, corals are stressed and my peppermint shrimp died.
	
I prewashed carbon/gfo and let it sit in a bucket of RO water for several hours with pump running.
	
What could go wrong? Or is it just a coincidence? I don't remember changing anything else.
				
			I prewashed carbon/gfo and let it sit in a bucket of RO water for several hours with pump running.
What could go wrong? Or is it just a coincidence? I don't remember changing anything else.
 
				 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		