It seems that everytime I stick my hand in to do something I end up breaking off a piece of coral somewhere or topple part of my "house of cards" rock work. I can never get it back to how it was so for me it's an ongoing process. I can see why Bev hates crabs as they(hermits) are the cause of a lot of the re-aquascaping I do. They rearrange stuff all the time or dig out a coral thought to be locked into a hole in the rock, etc. So then I go to put the piece back and break something else or topple rocks and so goes the cycle.
