My fish bites!

[Ruth]

I have 2 angel fish, a Naso tang and Elvis the Moorish Idol in my 190. I feed a butter clam a day (for the angels but Elvis is not about to be left out of that) as well as a sheet of Nori which turns into a free for all that the Gold Stripe Maroon often joins in with the rest on. Every time I put either one in the tank I have one Angel that tries to bit my hand every chance he gets. I have rescued more than one sheet of nori that was floating around the tank because I got bit before I could attach it to the magnet I use to secure it. Anyone else have a biting fish? Do they make fish muzzles?JK Just sounding off 'cause I just got bit and it bugs me!