Careful if you have star polyps.  Peppermints will eat them along with your aptasia

Most shrimp are short lived, they have a life span of 6-12 months.

My experience is that shrimp have always worked for me, but you need lots of them to get the job done. I had a bad Aptasia outbreak in my 35 gallon nano tank about 6 months ago. I added 6 peppermint shrimp and all the Aptasia were gone within 3 weeks.

If you have any small anemones or the popular yellow colonial anemones, both peppermint shrimp and berghias will eat those too.

I don't know of anyone, but if you have an Aptasia problem, I've always used peppermint shrimp with great success.