I had a few. Some of them faded away. The others grew rapidly, got to about twelve inches in a year.
As well as the stripes, they had interesting electric blue flashes around the face and gills.
But as they grew, they got increasingly aggressive, and they were not really beautiful. I could not keep them with anything else. They have since been banned by all fish shops.
If you have got two, keep them for a couple of years, and then eat them.