I have purchased it before. My Tangs sorta ate it but I think it's gross. It floats around and gets lodged in the rocks in my tank. I won't get it again.
I got some free with an order I placed with Marine Depot a while back. I don't feed it often because I like the frozen better but, my clowns go nuts over that stuff.
Actually, my foxface and goby gobbled it up..the others passed it up. As I learned, you have to pinch it between a small mesh square, and stick it to the glass so that the fish just pick it off.