Mine is really easy to care for. They seem to stress out a little from shipping. So if you get one from a LFS make sure he is eating. They are also a little flighty, so expect him to hide for a while when you approach the tank. Other than that I personally do not know of any other real problems with them. As they grow they get to be a VERY pretty fish.
Here is mine. I got mine as a hitch hiker. I got a bunch of live sand from a friend and I was a little surprised to see him pop up one day. He said , he wondered where he had gone. Kind of a unique hitch hiker, but has never been a problem for me.