I've had terrible luck with brain corals bleaching. I now put them in a shady spot in my tank and they do OK and do come back, but not really my favorite coral.
Same color it has been have the 18 watt skkye light over the Nuvo 10 gallon all other corals or fine an healthy pic when I first got it been in tank for almost month now I dose once week with b-ionic 2 part dose runnier ghost desktop skimmer an chemi pure elite do water change every Sunday
Trachy's come in so many different colors, it looks pretty normal or non bleached to me. It sounds like you are doing all the right things and they are pretty tough corals.
Hopefully someone else will chime in and give some of there experience with these, mine is pretty healthy without doing anything but change the water a couple times a month.