If you find them, get a male and female pair. My male chases her a bit, but won't hurt her. It was scary at first, but there are hiding spots and she took up residence at one end of the tank and he at the other where he sometime blows a bubble nest. I've had them almost 3 months. Sometimes they hang together and are gentle with each other which is really nice. Sometimes they bicker, and sometimes she'll chase him.
They remind me of a married couple. At night, they really stand out under the canopy light. I recommend the pearl. Easy to keep, they eat flakes, sinker tabs, bloodworms, brine shrimp. A nice fish. You won't be disappointed.