Love the tank room (also all your salifert tests). Jealous. I have a saltwater-RO/DI room, but keep all my tank stuff under my cabinet (dosing, ATO, cleaning, etc.). Once my Jeboa PP4s come in, I will put the main light on a timer so I can use nigh mode with the controllers under the cabinet. I wish the Jeboa controllers had external light sensors (or a timer built in)