Forego the clown I'd say, I prefer the peaceful and more graceful Ghost. The coloring, swimming patterns and his friendly nature makes him #1 for me.
It took a few weeks to get him accustomed to the tank, tank noises, etc. I found it difficult to feed him at first, I would melt bloodworms and mix them with tank water and drop them to the bottom before the other fish got them. I watched to make sure he got 5 or six bites. Now, he zips to the top to take clumps of bloodworms, and I think it won't be long until I can hand feed. He was about 4 inch when I got him in mid October. Now he is close to 6 inches, so I will be moving him to a new tank after Christmas. Just beware they can grow to 18 inches. But, in captivity it could be smaller. Also, clean water is a must due to his being a scaless fish. He has a fine black skin that you can see is smooth.
I chose a small one from about a dozen or so.
Keep your eyes open, I've noticed all the LFS I've been to have got them in stock now. But, they tell me they aren't always available. Goodluck.