I had it (heteractis magnifica/"magnificent sea anemone") for.............hmm.....a few months I guess.....I forgot, really.....sorry man!
The moment I put this guy into my tank, the clowns couldn't wait to get in there! I think this is just the right anemone for true percs!
very easy to keep, too! Eats a lot of Bshirmp.
cheers!