Originally Posted by bigpete
is it possible for a true purcula to host a bubble tip anemone?
Technically, no it's not possible like that. It's the BTA that hosts the percula, not the other way around.
I wouldn't recommend any hosting-species of anemones for a nanocube for two reasons. 1. The tank is too small to keep water parameters stable (unless you're VERY experienced. And 2. there's not enough light on those tanks to support an anemone.
Clowns would often take corals as a host in the absence of an anemone. Try some hairy mushrooms, frogspawn, or xenia instead.