I personally use the freeze dried stuff that comes in the cans.  I feed very little (a little goes a long way!).  I usually mix it with the Mysis I feed (when I remember to that is). 
 
Pros: 
Everything in my tank seems to go nuts for it.  The fish, the crabs, the featherdusters, all go nuts. 
 
Cons: 
My EuroReef goes nuts after feeding the stuff.  I have to shut it off for a few hours after feeding it or else the collection cup just fills with water.  Also, the cyclopseeze just doesn't sink.  I have to premix it with water, then suck it in a turkey baster and squirt it half way down in the tank.  If not, it just floats on the surface and gets sucked into the overflow. 
		
	
		
		
		
		
		
	
		
		
	
	
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