Ya, I think Mimzy might be right. You have alot of life in the 29. Ever think of moving up to a 38 or 55? They can had for cheap in the Want-Advertiser and stuff like that.
Angels are very active. My Pygmy Angel is constantly swimming, and always grazing on the rock and the glass for eats. Angels, especially the Atlantic Pygmy
can be aggressive little buggers, and very intolerant. For instance, my Angel was the 3rd fish I had put into my tank, behind Doink my Maroon Clown and Bailey Kane my Decorated Goby, and I can tell you that the Angel took full control over most of the rockwork after being acclimated. They love to swim through everything, and I have lots of Tonga Branch, so it makes for even more "paths" that Angel will find, use, and take control over. I sometimes see my my Angel swimming sideways at my Goby if it is trying to get in one of the openings to the many caves, etc. It definitely takes control, but wont get violent unless it sees a fish that is similar (but mated pairs can had). I also tried to introduce a 6 Line Wrasse, a fish I had wanted from the start but couldnt find. After it being on hold at the LFS for a week, I took it home, and acclimated it. Immediately upon hitting the open water and going near the rock, my Angel came out of nowhere and blasted it almost out of the water. It was not going to have the Wrasse go into the rocks, it just was not going to have it. The Angel pushed at the Wrasse every time it got near any part of the rockwork, and eventually pushed it up top near the heater. The Wrasse was so stressed and scared to move, it only lasted a day. Thats what I mean when I say it wont get mean unless it sees a fish that is similar. It doesnt bother my Valentini or Clown etc. I hope this info/experience helps you in some way.
Other than the fact that it can become "BOSSY", it is a great fish, and one of the most active your going to find. And they also have some of the best colors around