reefmaster719;186568 said:
Yes. As soon as you break them they spore off and multiply all over your tank...
this is incorrect. they do not spore off. Aiptasia anemones reproduce via pedal laceration (cutting the foot). If you try to cut them out of a rock, any little piece of their foot that is left behind will grow back into an individual anemone. Injecting them with kalk paste, aiptasia x, boiling water, lemon juice or any of the other known remedies may work, but may also take several applications to completely eradicate them. Employing biological controls such as peppermint shrimp, and/or butterfly fishes (if your aquarium can support them) can also be an effective means of treatment.
Majano anemones do NOT reproduce via pedal laceration and as such, you can cut them out of rocks in an effort to eradicate them.
Any time you are killing off a pest, be aware that tissue left in the tank will decompose, and as such can result in a spike in ammonia which is a biocide to the organisms in your aquarium. If you have a large infestation, be diligent about doing a few at a time, and don't try to take them all down at once. Also be prepared to run fresh activated carbon, aggressively skim, and do water changes to combat any allelopathy that may be resultant of killing off large numbers of nuisance anemones.