I got a zoanthid rock from reefer, on one side of rock there is a pile of small green things in one of the holes. They are like threads, very small, greenish color, with dark stripes. The seem to crawl/stretch all over the rock, wiggleing around. If I get near it with my hand they all pull back to the hole. Also there is an aiptasia anemone close by, it pulls its self under the coral. How will I remove that? How should should I remove the aiptasia from the other rocks? They are in my 10 gallon right now with my other corals, I want to get rid of the aiptasia before I move them to my main tank.