I've been wondering about foods for my yellow tang. I've been giving him a pretty good variety of things (algae wafers, frozen veggie preparations, flake foods, pellets) I am wondering though, about the sushi seaweed like nori. Is this something I could give to my tang as part of his diet? It's cheap and quite available to me (I love sushi!!) and I was wondering if anybody has tried this with thier fish. Also, any other quick and easy foods that are great for theses guys?