I've kept most of the Pseudochromis sp. that have been available over the years; all except the Splendens. When I had my last tank (before my divorce) it was a more FOWLR, larger species tank, so I couldn't keep any dottybacks in that tank. The 58g I have set up now is the second one since my divorce -- it's been set up two years. I've ordered two Splendens for the tank, and both of them arrived DOA. Right now I have a Stawberry Pseudochromis, and an Orchid Dottyback (TR). They get along very well together, surprisingly.
One of these days, I would like to own a Splendens, though.