Shortly after setting up my tank, I purchased some blueish-purple clove polyps from a LFS. He warned me about them possibly spreading. At the time, I didn't mind as I was testing survivability in my mixed-reef and purple is my wife's favorite color. They've now taken hold and are spreading. Has anyone had any success eradicating them. I've read about fluke tabs and Fenbendazole. I read somewhere about aiptasia eating filefish liking them also. Any experience with getting rid of these?