Sorry to hear that. 
 
Water changes are the best thing to do and some carbon/cuprizorb.  
 
If you know someone who can babysit your corals and the clam it might be best to move them to a stable tank.  
 
Was it a fluorescent fixture? How long was it in the tank? 
 
Cheers, 
Tim 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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