Removing orange ball anemones?

[Kali]

I have a rock with 6+ orange ball anemones on it. I'd like to keep the critters, and toss the rock. There is just enough of a depression under each critter on the rock that I haven't been able to scrap them off. The rock is also a big flat slab that won't be easy to cut or bash apart.

Any suggestion on what would be more successful to make them move or release? I had a heater failure a few years ago, that didn't move or kill them, so I doubt hot (salt) water would work.

 

[Reefing Madness]

http://www.melevsreef.com/node/493

 

[thehammer1985]

Small cement chisel?

 

[Mattyice008]

I've used aiptasia x before.. Usually takes care of em