Lighting  for sps corals
			 
			 
			
		
		
		
		Hi, 
 
Exclusively SPS and clams ? 
 
Sorry, but I think MH is the only choice for you.  I have been able (sort of) to keep SPS in fluorescents -- they grow pretty slow and they don't colour up as nice as other tanks.  
 
Best choice is the dual Iwasaki 250W with either a MV or MH ballast -- you can visit local refers to see the difference between the two ballast.  It is a matter of preferance. 
 
- Victor. 
		
	
		
		
		
		
		
	
		
		
	
	
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