with the exception of some Totally black lionfish that i think conogre used to have. it is called a blackfin lionfish. scientific name Parapterois heterurus
Good luck finding one, I searched all over the place and most people had never even heard of them. Those were the only pics I was able to find as well. You would have much better luck I think if you lived in Japan.
IIRC they are called bluefinned lionfish and they are japanese. I've seen two of them in my life. The magazine called KORAL ran an article about lionfish a few months ago and the author had a number of photos of these fish.
I suspect from its size and demenor it would be like keeping a dwarf fuzzy lion