I wouldnt put any tangs, the problem is that they like to swim. And they are extremely greedy eaters. Fun fish, but you really need a big tank for them. Yellows can and will grow big fast. My yellow went from 1 inch to 3 inches in like 6 months.
I was lucky and I was able to donate my large tangs to a public aquarium. They now live in a 20,000 gallon tank with a school of tangs. But it was really hard to find such a place, and emotionally, I was terribly sad to give them up after having them for so many years. But boy was my tank happy that they were gone. I went from feeding 4 cubes of frozen per meal to 1-2.