We all have a different story to tell with, what does work for you, does not work for me. I have a sail fin tang on time out in a large salad rinse bowl floating in my tank. Been there for about 3 months now. He takes food from any fish path, he swims super fast at feeding time because he wants all the food. If I feed my bubble tip I have to keep my hand in the tank so this guy won't rip the fish out its mouth and eat it. He has eaten some of my soft corals. I was trying to catch this guy for months until that day came and he swam right into the net. He will be on time out until I give him to the local pet shop for something but he will not be "free willy".