Help ID Paly/Zoa (spreading too much)

[killakam]

Hi,
I was wondering if you guys could help me ID the palys in the middle of the pic, the brown/tan looking ones with bluish purple center.
I got a frag of them a while ago for free or something and since than it has spread all over the rock.
Any idea? I would like to get rid of them if possible.
Any advice on how to?

Thanks!

 

[scubakid3]

Those look like Lunar Destroyers to me, but I'd just get someone else to confirm.

 

[650-IS350]

need closer pic to see details of the polyp to really know what it is