Yeah, its awesome Craig. I just got 10 sheets of it today via Premium Aquatics. I think it also soaks up Selcon/VitaChem better than mysis as well.
Not sure when it was released, but they don't even have it on RodsFood.com yet. From their site:
The Original, Herbivore and Fish Only blends now contain Pacific plankton.
Pacific plankton (Euphausia sp.) is a small krill that highly resembles Mysis shrimp, but unlike Mysis, the Pacific krill is a salt water species with high levels of astaxanthin and omega 3 fatty acids.
Euphausia krill are commonly use as food in salmon farms because it gives the salmon their pink color due to the high level of astaxanthin found. We are not replacing Mysis with the pacific krill! We are definitely keeping the Mysis shrimp in our foods for its high protein and omega 3 content, but also adding the Euphausia pacifica krill for its omega 3's and its color enhancing abilities.