Sadly it seems to be rather rare that they host up with clowns. Oh well, he is sure attractive and a nice addition to my tank.
They never-ever host up with clowns.
However clowns may chose them as hosts.
The following Anemonefish species chose
M. doreensis as a host anemone in the wild:
A. crysogaster
endemic to Mauritius and rather hard to find. I had one and it actually chose an
Actinia spp. I had in the tank as a host. So it seems they are as opportunistic as
A. clarkii when it comes to anemones.
A. clarkii
they are the most opportunistic and can be found in all host anemones. In captivity they take pretty much every anemone that is large enough (3" in diameter), regardless if host anemone or not.
A. perideraion
In captivity
A. ocellaris and
A. percula have accepted it and I suspect many other clowns will settle for them rather than being without an anemone.
Some melanistic forms of
A. percula from the Solomons that were hosted by
M. doreensis lost most of their black (
see here).
Your anemone seems to be extremely bleached and until it regains some color I wouldn't add clowns to it, especially not big ones.