Go into the Anemones & Clownfish Forum. One of the stickies is the "Clownfish and Anemones FAQ." Click on it. Scroll down to "The Anemone FAQ,' and select it. It will download to your computer and has a bunch of info.
The short answer is that the H. malu naturally hosts only the A. clarkii, according to that FAQ.
ETA, maroon clowns are known to be quite aggressive. I don't know about your other fish, but I think (emphasis on think) you would have problems between it and your occelaris.