all you have to do is decide how many you want to frag. then, there should be a membrane that they are branching out from, just cut around them, and through the membrane. finally, just peel the area you have cut out. be careful not to cut the actual polyps, because that will kill them and they may release toxins. don't be afraid of fraging them out of the water. when i frag mine i keep them out for up to 2 min. always wear eye/hand protection because the last thing you want is a trip to the e.r because of something smaller than your pinky nail. here is a thread on palytoxins https://forums.saltwaterfish.com/t/283382/tell-me-about-palytoxin