First thing I thought with the polyp things was aptasia too. However, they are growing outward (spreading) like a carpet on the most part. I definitely do have a few new aptasia though. I count 5 that are obvious. In the same time frame they individually have grown larger, maybe 2-3x the size of each of the little polyps you see in the pics and definitely retract. I haven't tried touching the little guys though. I am going in to clean all the powerheads, etc. before the blackout (for dinos) so I'll check it out and let you know. Maybe I'll grab a couple of pics of the aptasia too so it's easier to compare them against each other.
I'll look into the compatibility of the angel in my tank. I'd much rather have a nice looking fish control the issue than me have to deal with it manually.
