One of the most effective methods, that will also give you great satisfaction, is the old blow torch. If you :flamethrower: them they will not return, although this does mean pulling out the affected rock and the smell is not very pleasant.
For a true scientific experiment you are going to have to torch at least 1 of them.
I also saw where Traci posted somewhere on here that she had rocks with aiptasi on them that you could add to your experimental base.
