Hey guys. I recently discovered something about angelfish. Several months ago, I bought a young pair of angelfish; a marbled and a black lace. Within twelve hours, the marbled had died, presumably from stress, as I was careful to slowly acclimate the fish. Thus, the black lace was left as a lone angelfish among tetras. She has since grown quite large, a beautiful fish with bright copper eyes and full fins. I named her Kai. I decided to get another angelfish a while ago, so I bought a silver one, larger than her, in the hopes that she couldn't push the new one around. But, within a few days, Kai's fins were shredded by the new one, so he was immediately taken back to the fish store. Apparently, he thought he was the king of the tank, but I couldn't stand watching him do that to Kai. But, I decided to try it out a little differently, after her fins healed. I bought a single, small, quarter-sized baby angelfish from my LFS. Half koi, half silver, with some chocolate brown speckles. I just fell in love with this baby, whom I named Cole almost instantly. Kai reacted as I expected her to. She went after the poor little guy. But, Cole dove into one of the plants, and Kai couldn't reach him. This went on for a while. I fed them, she chased him, he hid. I watched them, she chased him, he hid. She just kept going after him. But, she never could catch him. And he knew it. It turned into a game with them. He would swim towards her, all proud, with his little fins on regal display, until he invaded her bubble and she chased him, and he hid in his wisteria, mocking her. At first, it scared me. What if she'd caught him? But he was too fast, too small. Cole eats like a little pig. His colors are vivid, and he's not in the least bit stressed, despite being the newbie. He loves exploring the whole tank. I've noticed that her "chase-zone" with him has gotten smaller, and she doesn't chase to hurt. He can almost swim beside her now. So, contrary to what most people would think, if you want to introduce a new angelfish, your best bet is one considerably smaller than the one you have, ESPECIALLY if you have plant cover. The babies are faster and can hide in small spaces that the adult can't fit into. The adult will most likely soon realize they can't really push the little one around, and give up the chasing. Don't get me wrong, introducing new angels to an established tank with other angels is tricky business, but I just figured I'd share what I found.