These show up in the hobby fairly often, not so much because they are the best choice but because they are easy to collect. At least they are small enough that they won't starve quickly. In the wild, this species lives in the rough water at the reef edge, or on rocky shores with lots of wave action, where the water is super-aerated. But, they mostly feed at low tide at night, when they may be totally exposed on the rocks. It would be hard to duplicate this habitat in a reef tank, but it might be OK anyway, particularly if you have quite a bit of surface area for it to graze on.
Cheers,
Don