btw, Condy nems are aggressive, and it's not advisable to keep BTAs and condies together. In case you were considering adding a BTA or other nem.
A condy is not really considered to be a host anemone, but sometimes clowns will make do, and yes I agree they do have a stronger sting than most host anemone's, but keeping them in a tank w/ other nems is not really a big deal, I just would not want them touching other nems or corals.