Don't use Aiptasia-X, it will just make them spread. Most other fixes like kalk paste, hot water in a syringe, etc. probably will make them spread as well.
Peppermint shrimp seem hit or miss (no personal experience, just anecdotes from years of reading this forum) and shrimp are not friendly to LPS and some softies (from personal experience).
No idea about filefish or other fish, but those have issues and limitations as well.
Berghia is the only thing that doesn't seem to have any drawbacks other than price. I have used them a couple times quite successfully. I also have several wrasses in a 60 gallon cube. The berghia will be fine if you put them directly on the rock (with the provided pipette) at night. They only come out at night unless they are starving. Wrasses do not eat when the lights are out.
Peppermint shrimp seem hit or miss (no personal experience, just anecdotes from years of reading this forum) and shrimp are not friendly to LPS and some softies (from personal experience).
No idea about filefish or other fish, but those have issues and limitations as well.
Berghia is the only thing that doesn't seem to have any drawbacks other than price. I have used them a couple times quite successfully. I also have several wrasses in a 60 gallon cube. The berghia will be fine if you put them directly on the rock (with the provided pipette) at night. They only come out at night unless they are starving. Wrasses do not eat when the lights are out.