There is a clear feeding order when it comes to Nori in my tank. I can't even use clips. The head of the tank is the Naso, followed by sailfin, yellow, and then hippo. I feed them Nori 3x a day as a snack and they also get breakfast (NewlifeSpectrum TheraA pellets and flakes,Formula 2 pellets, and a bit of Prime Reef flakes)
dinner is the same as breakfast but I add Frozen mysis.
Chris