Wow! It’s beautiful! Makes me wish I had a bigger tank! I just don’t want to add one to rehome it because it has outgrown the tankI kept a lemon tang, also know as a mimic tang, maybe a mimic yellow tang or a mimic lemonpeel tang. It is the juvenile form of the chocolate tang, which pictures do not do them justice. They are very docile and grow extremely slow, I kept one in a 90g for a couple of years. I really enjoyed him but the 90 was my lions tank and he just didn't fit in, so I gave him to a friend. I cant say yes or no on the possibility of the lemon and kole co-existing in a 72g, but they would have a chance. Here's a pic of mine changing.