Hey Zenn!
I just got some last night for my tang.
Found mine at that food store at Village Point. 5 bucks for about 8 oz I think.
He loves it, but took awhile to warm up to (he's been eating the purple and green prepared seaweed from the LPS).
This stuff is a little messier than the "official" fish seaweed. Haven't been on it long enough to see how it affects/helps with my yellow tang's mild case of HLLE (he's in MUCH better shape than the remaining ones from the same batch at Aqua Pets, those all look pretty bad, and that place takes pretty good care of their fish). Mine still has great color, appetite, looks full and has zero fin disentagration, just some pits behind his eyes.
I'm hoping the nori will help.