55 Gallon Live Rock Issue!!!

Wrong forum, bud. We're freshwater people here....most of us.

Try ReefCentral or Reefs.org

On a side note, it could be algae growing on the rocks. Can you rub it off or blow it off with a turkey baster? Is the ENTIRE rock turning yellow?

The problem is their not getting all the proper wave forms of light. You mentioned that you turned off the 4x65.

High light is important, but you cant forget to have the actinics. They supply the proper wavelenghts needed.

Are those bubbles on the rocks trapped beneath algae, or did you move the rocks to take the pictures? Cyano bacteria is the only thing that looks remotely like that that I can think of, but it is a reddish-brown color, not yellow. Try to take some full-light shots of the rocks, and head on over to RC...

By the way, you don't need "actinic" lighting. If your halide bulbs are less than 14k, depending on manufacturer, then you may want actinics to make the corals and fish more colorful, but this lighting isn't necessary and your tank will mature just as well without it as with it.

Cheers,
Marty

Really . I think you'd do better here: Reef Central

There are a lot of questions here. How long has the tank been set up? How long is your light cycle? If this is a new tank setup you are likely going through the typical algae blooms that accompany many new setups. Keep up with maintenance and you should see it go away on it's own.

How long was the rock out of the water?