Does anybody know how to make your own lighting system. I'm very confused and wish to know how to wire everything together. I can build the canopy easily. It's just the eletrical part I'm confused on. Can you make a DIY system for a 30 gallon hexagon aquarium? I was thinking about a mercury vapor light for those. I'm doing this soo I can have a nice lush planted aquarium ( or aquariums ) I can be proud of. I'm gonna build my own co2 system by using one 2 liter bottle and 1 two liter bottle for the 75 gallon aquarium with bubble latters. I'm also gonna use a one liter bottle for each of the 30 gallon aquariums. Somebody please help me. I'm very desperate.