I don't know about other peoples experiences, but I just had to tear my entire tank apart to catch a Bicolor angel. It was my favorite fish. Very Active and Beautiful. In the beginning, he did not bother anything, but all of a sudden he decided that polyps were mighty tasty. I would recommend not going with a pigmy angel. It was not a good experience for me. I have been told that other people could keep them without problems. I wish you the best of luck whatever you decision is.