Over time I have bought 15 and have 9 still alive currently. (3 DOA's right off the bat...really don't travel well)... but of those 12 that were alive to work with, I lost one to the misguided bravery with a pistol shrimp, and 2 to a bought of a mystery illness. I doubt many people would have taken notice to the symptoms they displayed, but I stare at these guys constantly! lol. But after a round of prazi pro and they ended up turning around. So, I think their doing fine now.
I do want to add though, these guys (for me at least) seem to do best in a single species tank from what I'm seeing. Any fish tank mates I have tried adding in, really seem to change the dynamics of the tank.
This next week I'll be adding a small jv. banggai to the tank just for kicks and grins to see how they mesh with each other.