I find myself just as interested in the night time activities in my tank as those in the day. That is when the snails, pods, worms, crabs and florescent items sometimes become visible. I would love to see photos on some of the activities in other tanks just before or after a tank goes dark, just before everything closes or just after. I illuminated this set with a UV flashlight. Candy canes are almost too bright. The 2nd is a Royal Gramm curled up in a cavity to sleep, the yellow dissapears. The 3rd and 5th are green star polyps after and before closing. I can't believe a Yuma Ricordia can close up so small like in the 4th. I love viewing zooanthids at this time, 6th. I am sure other have better night pictures of these.