Quote:
	
	
		
			
				
					Originally Posted by  lastlight
					 
				 
				Before I mounted my rock background I attached these anchors underneath my overflow box. These will stabilize the rock work which is going to cantilever out a fair bit I think. They're large enough to fish a few long zip ties through them. An additional anchor will likely be place at the foot of the rock tower to keep the bottom from sliding around. 
A little bit of insurance until I have sand in.
   
			
		 | 
	
	
 
Man that freaks me out...looks cracked....