Dosing to kill aiptasia?

[labrown]

Pull the rocks and let them dry in the sun for a few days. Then put them in the freezer for around 48 hours. Thn scrub and wash them and return them to the tank. Should take aprox 5 days in all and will ensure you start with a pest free tank.

Am I risking killing the liverock by doing this? Or would it just most likely have to cycle again?