I got a frag of a white acro. In the store under MH lighting it was all white and no poly extention so I dont know what color they were, but the sps had a slight hint of blue and when I got it home it took a few days but it looked really good and promasing with the hint of purple now under my T5's but now all but one tip and stems are turning a browner color (no more pure white). My questions are is it dying? Can anyone tell me the name of this coral? Any help would be great..