Tommyfish
Your anemones in Pic #5 are a Fiji-type anemone that, while attractive, are pests comprable to aiptasias. Unfortunately, they're harder to eliminate.
About the only way to eliminate them is to use a syringe and inject them.
There has been some discussion on the board as to what to inject them with. I've used miratic (sp) acid, but only inject a couple at a time. I've had friends use vinegar.
You need a direct hit to get rid of them. IMO, if they are concentrated on a small rock, I'd take the rock out of the tank.
FWIW,
Spinner