I had one of those fiji pink T5's installed a couple years back and found that initially it brought out reds and pinks, but over a period of a few months the real red and pink colors appeared to fade.
But I think in general, polyps in lower nutrient environments tend to be more pastel looking whereas in higher they seem more vibrant. Sometimes one looks better than the other...usually it's the opposite of whatever you end up with that you want.![]()