The filefish and Peppermints just got here this week, i know i havnt given them time yet, just trying to think forward a bit for if they dont work out.When did you add the filefish and the peppermints? They take time to work, but I can attest to the effectiveness of filefish... the only reason I don't have one still is because they go after corals once the aiptasia is gone.
If you want to go the butterfly route, I would go with Dr. Reef or TSM Aquatics - they'll put them through quarantine ahead of time, so by the time you get them they should be transitioned to captive feeding, which is the biggest challenge with them. TSM doesn't have any at the moment, but Dr. Reef lists them on his site.
And I'd reconsider the chemical methods... if your concern is the size of the aiptasia, use the chemicals to kill the big ones. Yes, they'll release babies, but then you'll have small anemones instead of the large ones. So, keep your biological controls in place (file fish, maybe peppermints, maybe add a copperband or other aiptasia-eating butterfly) and go headhunting for the biggest aiptasia. Knock them out and let your biological controls take care of the small ones.
When you added the berghia, how did you add them into your tank? What livestock do you have in your tank?
TSM is actually my LFS, as they are about 15 minutes away, and every fish i own has come from them, except the filefish from biota.
My issue with the chemicals is that they don't seem to do any good. Ill use an entire bottle of F-Aiptasia and only be able to cover about 6-8" of rock space because there are so manyAnd then less than a week later that same area of rock looks like i never touched it.... and that whole week i have to watch my PH because the F-Aiptasia raises it so much that i need to add HCL to lower it to a safe range.
We added the 25 berghia at night after lights out using a pipette that was provided with them.
We do have 3 wrasse, A McCoskers, A leopard and a Pintail. so they might have eaten them if the aiptasia didnt........