possible seaweed food?

[born]

Just bought some cheap seaweed today knowing it would be a hit or miss on feeding it to my tangs.

The brand is Roasted, Seasoned Seaweed from Being Blue. I opened up a package and honestly it doesnt seem like it would be a good idea as food for my tangs. It tastes a bit salty and even rubs some off.

Here is a link to the photo : http://www.google.ca/imgres?q=being+...1t:429,r:1,s:0