I have not had any problems with Peppermint Shrimps, but a friend of mine insists that after his 3 in a 60g decimated the Aiptasia problem in his tank (over a mere 4 days), that someone started to munch on his Frogspawn.
He promptly removed 2 of the shrimp and kept only 1 to keep an eye out for future outbreaks.
They are still shrimp and therefore are very self sufficient and don’t require anything special (outside of what all shrimp want). They are also readily available and cost effective. Plus you get a Shrimp out of the treatment.
I don’t think they are a problem with other Anemones. I also assume that I would have been “Flamed†beyond burnt for recommending Peppermint Shrimp in this Forum if they where.
If you only have the 1 Aiptasia, just kill it and see if you have a “Problem†vs. an “Incident†before you take further action. â€"œ IMO
-Rich