pest problem

[cloienc27]

I have these rock anemones that are spreading like wildfire across my tank. They must have came with the piece of rock I bought with mushrooms. They are starting to grow under my mushrooms forcing them to not completely open up. I am soon going to be fragging my mushrooms so the babies can get light but how do you get rid of these nasty pest???? They are in great abundance, even starting to take root in my crushed coral. Please help

 

[maryg]

I would ask someone if you can borrow a butterfly fish.
My sister in law had a racoon butterfly and it took care of all her aipasia. My husbands cousin has a tank that is literally covered. It is in the sand, walls, in the plants, and on the rocks. Also get a couple of peppermint shrimps.

 

[renogaw]

are you sure they are rock anenomes and not aiptasia?