Rose Bubble Tip Anemonie

I had 1 Rose Bubble Tip Anemonie and now split. I have 3 now. I need to remove them because they are stinging my coral. Does anyone know trick to get them loose from rocks they are attached too.
 
Aim a powerhead at them but place some small rocks down flow so they will climb on to them for removal. Otherwise they may move to less desirable place than they are now.

You can also try the ice cube on the foot trick.
 
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