Lobo lost Color

[coltsman44]

I purchased a lobo a few weeks ago at PA. It was flourescant red and green. It has now turned to a dark maroon color. Lighting is a Hamilton dual 250w with 4 actinics. All water parameters are good. Other corals are doing well. I was wondering if anyone had any ideas on why the color change.
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Thanks,
Coltsman44