I have one and I believe
@OrionN has one so maybe he can chime in too. My diamond tail has a lot of personality and displays at my flashers, fairies and halichoeres wrasses all day long. Diamond tails are easy to take care of they're not picky eaters, but they are bolder than most other flasher wrasses and get decent sized so their tank should be no less than 4 ft in length in order to see them at their best. A screen top is a must. My diamond tail is an excited jumper, he's always bouncing off the screen top at feeding time. I'm not at home so I can't snap a pic, but here's an older pic of him from my cell: