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Hey guys, setting up a 135 gallon reef aquarium with 55 gallon sump/refugium.  Gathering all my things together to start my process.  I am glad I found this forum, at least I know most of you are close by.  I will have many questions to ask as I go through my build.  I have a metal halide system that I will be hanging about 15' above the tank.  For what I am going to be growing I dont think it needs to be much higher and I have heard stories of people putting MH to close to their tanks.
				
			 
	 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		