i had mine of the end of my tank where the par was much lower and the polyps browned out first. after talking with my buddy, he said to move them in stronger lighting, and sure as hell the colors are starting to come back. since it was at the ends, it was still more par than pc's. the pc-r might be able to keep their colors. hey speg try to look for a rainbow sunburst monti. it is RIDICULOUS.