Growth but no colour

[Mules1]

Posted this in New to the hobby - but maybe wrong so posting here.

As you can see, the growth is what I believe to be good - doubled in size (at least) since june However, the colour is just a pale pink (white edges - growth area I think). What can I do to help colour it up? Two weeks ago I increased the lighting to 100% from 70% (40 3w cree LED) and still no change. Also the Acro in the background had lime green tips when I bought it - now just plain - polyps are extended.

Parameters as of last night ('cause I know you'll ask):
Phos - 0
Nitrate - 2.5 (or less)
Nitrite - 0
Ca - 480
Alk - 8.24
Sal - 1.026
Temp - 78
Mag - 1300
pH - 8.1

 

[sponger0]

Bleaching usually results from too much light. And you turned up the light so Id say there is your answer. Also it can take a month or so for the color to come back