Unfortunately they don't seem to list info on their website yet but fwiw their website page is at
http://www.oceanfreshaquarium.com/
The bottle label looks *remarkably* like another of their products, Cyano-Starver which you can currently pick up at Red Coral in Calgary. I don't know if it's the same product but been renamed or if it's something totally different. I'll see what I can find out about that.