I found about a hundred of these guys on a peice of clavularia (a dieing peice) I see them at night on the glass too.  The nudibrach is only about an 1/8 inch long max and has short brownish frills(Gills?) on its side.  The nudi is mostly brown/tan with darker gills. My question is what is its name and does anyone know if it eats all soft corals or just a few specific corals.  Thanks.  
P.S. I have a digital picture but Im not sure how to post it?
								
								
				
			P.S. I have a digital picture but Im not sure how to post it?

 
				

 
	
