Can anyone tell me what these green things are?

[RPatsula]

I think I can take that one piece of live rock out and scrape the bubble algae off.
My radions are at full intensity using the natural lighting pattern. I never know what type of custom pattern to create. Waynemah, do you have radions as well if so what intensity are you using? I'll think I'll turn mine down to 80%.

thanks
Rick