I do have a hammer drill, but I haven't tried it.  Thanks for the idea!  I will try on the tough rocks.  There are only a few or a couple that are super hard, the rest are really easy to drill. 
 
On my next attempt I will try to incorporate PVC structures and the big black zip ties I bought and forgot I was going to use. 
 
I have a pretty good idea how I want the whole tank to look, so ya I have the inhabitants fairly well thought out.  I have a few inhabitants that are "out of the box" for me like the Bellus Angel, and a couple of the gorgonian species that I am unsure about. 
		
	
		
		
		
		
			
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				~ Mindy 
 
SPS fanatic. 
			 
		
		
		
		
	
		
		
	
	
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