I have a number of G5blues on my tank and my observation is that they ARE NOT too blue. Running all colors at 100% does not give a windex look at all. In fact, I'm finding that it is a little too white for my taste, and I've turned the white channel down a bit for most of the day. I too had the "not blue" request from my wife and haven't heard a peep from her on the look.
I had purple plus and coral plus T5 supplements, and they are definitely more red and white (respectively). I'm running CP in back and PP in front right now, but plan to swap the PP for a Blue Plus. I'm not sure what I was thinking with the initial bulb mix, I really want even blue from the T5s and not something that is shifting the spectrum when they are on. If I need more red, I can easily add via LED. I might even just put all Blue Plus bulbs on. T5 for evenness only....