That size tank is borderline big enough for the coral beauty let alone any tang. Consider a trio of azure damsels, a blue gudgeon dart fish, pair of wheeler gobies, flametail or tailspot blenny.I currently have a royal gramma, 2x clownfish, and a coral beauty. I am setting up my new reefer 250 soon and going SPS only. What fish would be good in a reefer 250 for the betterment of the reef? Thinking about getting rid of the coral beauty, adding a yellow tang. And maybe 1 or 2 more fish. Any suggestions or ideas?