SuperX

In the first pic you have Pachyclavuria species - a.k.a. Green Star Polyps all over, a few pieces of Heliopora a.k.a. Blue Ridge Coral and the only other wierd thing I see in the upper right is a tunicate/sea squirt. Actually if you look below the sea squirt you have some kind of nudibranch there - it may be predatory on something in your tank - look at the white bushy things - it's a sea slug.

In the second pic the brown things could be some type of stony coral, calcerous algae - who knows. I can't tell what I should be looking at in this pic if you can point it out I might be able to get you a general ID.

HTH

-Mike