I almost did do that. But I wanted to try the "natural approach". First with berghai nudibranchs-which failed because I think the aiptasia were too big at this point. Then I got the butterfly and it's doing great getting rid of them.
Believe me I was very close to buying aiptasia x.
Natural is better, in my experience. If you don't do a perfect job with Aiptasia-X, there is a big risk of causing an aiptasia explosion.
Bruce