Seagrass works for me. Used to have aiptasia garden which almost wipeout all my sps, now left 3-5 small ones.
I've tried joe juice, kalk, hotwater, pepermint, all do not work for me.
This is my seond seagrass. My first seagrass, I threw back to the sea coz it start nipping on my yellow milli. Then the whole tank bloom with aips. My second seagrass did a great job and clean up the tank. Those remaining aips just hiding, waiting to bloom again if my seagrass were to 'disappear'. Also, my second seagrass, doesn't nip on my sps or lps, but just luv henry's food, since there is not much aiptasia to go around.
No need to buy all those stuff, just throw that ugliest seagrass fish in your tank and let it do its work. Hope Henry would bring more of those 'trained' seagrass.