We had (actually still have) a chevron tang. It ate everything from the get go. Nori, form 1 and 2 flakes and pellets, spectrum pellets and mysis. He is not in a QT tank waiting for the new owner to pick up. We had him for 6-7 months in a 220 gallon tank where he grew from 2" to over 4". He was picking on our regel angels that were added after him so he got the boot. We soaked all of his food in garlic zoe and zoecon when he first got him in, now we only soak his food once a week or so in the addatives.
Very cool fish and gorgeous!