How beautiful those blue lights look, is got to be so soothing for the sneks, like moonlight
I also do this Gio, I have the lights in the sneak room on 2 timers. The main light goes off at 6pm and the "stars" light up for 2 hours before going off as well and they have complete darkness, except for the blue light of the herpstat 4.
I got to explain what the "stars" are; I have a strip of Christmas lights on the upper edge of the room's walls.