Quote:
	
	
		
			
				
					Originally Posted by  Madreefer
					 
				 
				 Does'nt the growth of coralline algae some how have something to do with Mg? 
			
		 | 
	
	
 Something I've noticed recently is that I have very little coralline in the DT. However, my frag tank is covered. Same water, so I've been attributing it to light.