I think you are on the right track in thinking all of your suspitions, I would keep a closer eye on the Angel, kick up the flow and move him higher up into the top of the tank. Hows your Magneesium?
Hey guys I am working on my 29 gal. BC 29 and have completed 99% of the equipment part of the project, in one of the pictures below you will see some corals from my previous tank that I had to tear down because my wife was going to loose her job. Now that my 155 and 225 Starphire tanks are gone...