Nothing aggravates me more than lfs that do not take care of their fish, but selling specimens that clearly do not belong in small tanks is on the list too. Both the Lunare wrasse and the Sailfin Tang are completely wrong and both are aggressive, not to mention that tang looks emaciated and should be fattened up asap. Do yourself a favor and do research on what goes well in a small community tank, I would even shy away from damsels because they're very territorial as well. Cardinals, Flame hawk, gobies, royal gramma, ect ect., always come here to ask questions before you buy and you'll save yourself money and many headaches!