Depending on the size of your tank, if it’s on the smaller side they will likely be the only inhabitant of said tank other than inverts, (mine iced any shrimp that I tried to add) also not all of them are the same. Like maroon’s are more aggressive/territorial, while skunks are on the more Docile side. They can be hosted by Anemone’s, and sometimes other types of coral.. Duncan’s and I think I’d even heard elegance to name a few. Very hardy fish none the less, feed like most other fish I.e. Frozen Mysis Supplemented with a good Pellet food…. Oh and chances are they will go to great lengths to nip at you if you put your hand in the tank lol.