This narrative is hilarious to me. Come on guys and gals, lets get off the Biocube lights are sufficient" kick. They simply are not good lights. They are one of the most bottom of the barrel light setups a person could have in this hobby. I know, I had one for years. I would say that a goid rule of thumb is that a person in this hobby should be prepared and willing to spend more money on the lighting system than the tank itself. Unless you can get one used, that's what you will pay for decent lighting for your tanks inhabitants. There really is no discussion beyond this. Ditch the hood and get an AI prime for example. It would be perfect for your tank and you will never need to worry about it overheating when the fans go out. Which, undoubtedly, they will. I think the other person that stated there are high light level zoas and lower light level zoas is spot on, but I highly doubt that a stock biocube light setup could ever produce too much light. I have never heard any with a biocube make that complaint.