Both of them are right. One thing you can do with the nori if you get tired of the rubber band and rock thing is use a clip for your tank, or if you have one of the magnet glass cleaners. Trap the piece of nori between the glass and the cleaner.
Also the mysis and brine shrimp will help get it started eating, along with the garlic. Soak the shrimp in the garlic for about an hour before putting it in the tank. This worked with naso and also just recently with another person on this board.
HTH
Scott