I would like some clarification on what lighting requirements are OK for an octopus, and if corals are OK. I've done a lot of research by reading past threads, but have seen mixed reports. I know that Octopuses need prefer low light, and any kind of stinging coral is definitely a know. NPS corals should be fine, as well as leather corals, gorgonians, mushrooms and certain ricordea. My question is, if you get a species that can be more active during the day, is it OK to have VHO lights for corals on during the time when the octopus would not be out anyway, and then make sure it's dark during their hours of activity? My plan is to have a programmable light slowly increase in intensity and then dial it back down again, switching to red at night. Hoping this will allow me to grow photosynthetic corals as well as have the octo. Some people seem to do this with success...is it a bad idea? If so, why?