Pale Lobo brain

[furrymurray]

I have a orange lobo that out grew a smaller thank that I have. I transferred it to a larger tank a few months ago. It has slowly lost its flourescent orange and is now a pale orange. It still puffs up good and its feeding tentacle still come out. I do feed it about once a week. It looks great other than being pale. It is under AI vega LEDs. Also a side note. About a month ago I started using GFO and GAC. Parameters are following:

Ammonia/nitrite/nitrate 0
Phospates .02
Salinaty 1.025

Is it too much lights, too little lights etc? everything else lools great. Thanks in advance