I currently run a 55 gallon standard aquarium with one Viper spectora, 165 W, and I acquired a second one that is used and has the lens removed and I want to add it on to my 55. Should I knock my current settingsdown? Which is 100% blue and 40% whites down to half when adding the second one, and then slowly dial back up and run them both at 50 Percent blue in 20%, white or should I leave the current light The way it is, and just add on the second?