Agree on the space - they are a larger tank fish.
They are not all that easy. Not a great choice for an anthias first-timer (no idea if you are or not). I have had them a few times and never gotten more than a few years out of them - to contrast, I have lyretails and bartletts near, or over, ten years now.
Mine were hard to get to feed at first... took a long time to get them to eat pellets which is really what is necessary to get them fed 3+ times a day with an auto feeder.