Hey guys quick question as I am attempting my first refugium and it is on an aio waterbox 20g cube. I assume since chaeto is a plant it follows same idea of a light and dark cycle. So question is I have a 9w innovative marine refugium light on back of tank where I cut a shaped hole in black backing, should I be turning it off? I been doing on at night and off while "day" lights are. What are ur guys recommendations? I have a marinepure block along with some live rock chunks with chaeto on top of that near light window in second chamber.