Any Mandarin is a fish that should be left up to the experienced with a very established tank. They require a diet of copepods and amphipods as well as other micro organisms within the rock and sand.. I am not implying that you are a novice with a new tank, just letting you know what they require. If you do have a well established environment and can supply it with enough food so as not to starve, then they make great tank mates for a peaceful setup. They are very mild mannered fish and look cool the way they hover over the rocks and pick at it..