They are not always the easiest to acclimate to aquarium life but are propbabley easier than other species of anthias. It will typically hide alot, so ensure there are plenty of hiding places for it. If not, it will most likely not do well.
They are primarily planktonic feeders and will require meaty foods for the most part. Just ensure their diet is fortified with vitamin additives if the foods are not purchased as such.
It should not have any issues with the rabbitfish providing the hiding places are available, if not I would advise against this type of fish.