[MrTuskfish]

Like DustyReefer said above, just try another form of green-stuff.

As long as the fish has other sources of veggies; it won't hurt it a bit if he doesn't like the nori. If your kids eat the broccoli, but hat lettuce, who cares? He'll probably come around. I kept many tangs before nori was ever thought of. I still feed my tangs turnip greens, frozen to soften them. Even though they are considered herbivores; tangs also need, and love, meaty stuff, like mysis. Spirulina enriched brine is a good way to get more algae into tangs too.