I'm not big on feeding that stuff. Would you pour a bunch of dead stuff in your tank that has been sitting in a bottle on the shelf at your store or the distributor for who knows how long?
But like Amphibious said above, what are you trying to feed with it? Keep inmind most soft corals won't be able to capture or digest the stuff, LPS corals would do better with larger fresher foods, SPS doesn't need that junk, Clams use smaller live phyto...
IMO, just something else to dirty up your water.