Naso L. Is just a big wimp; not aggressive to the clip at all. I had a vlamingi a while back that was too big even for this tank. It would rip the entire clip off the wall.
Until it melts and my emerald crabs grab it. My tomini and foxface will each take a bite then go about their day. What’s the secret to getting fish to eat it? When I had a YT & bht & abt I had the same issue, no interest.
If you haven't considered it maybe grow macro algae and feed that instead. I recently placed on order from IPSF for their tang heaven macro algae. My two tangs and rabbit fish go crazy for it. it took maybe 2 days to stop being scared of it but once they figured it out - they mow it down.
Grows really fast and is a great nutrient export. I don't have a refugium so this batch isn't lasting as they are eating it faster than what grows. Then again you have a lot of fish so maybe Nori works better. Just wondering.