Does this only happen with feser one premixes or is this true for any coloured coolants. I just set-up my first 2 loops ever with primochill pc pure green/blue and I definitely don't want this to happen to my precious heatkiller 3.0 cu en my blackfreezers gtx295. If so ill throw out this gunk immediately and switch to distilled water with some PT nuke and just put leds in my reservoir