Beware, stores sometimes sell the Purple-Spot Gudgeon, or the Mogurnda Mogurnda, under the false label of Peacock Gudgeon Goby. My PSG is going on five inches now and eats anything it can fit in its mouth. Definitely not a community fish.
Yeah, I really want a pair, but they haven't had them on Aquabid lately. Only singles, and they probably won't guarentee male/female pairs if you get two.