I was just replying to your other post in the other forum and realized it same person. Fish rule had it pegged. First you need to decide what you want to keep. I was refuring to one MH. When you asked ifone would be enough for your tank. You will need at least 3 watts per gal 10,000k and blue atnics. which i believe you have actnics only at this point. Iam assuming you have small hood that came with the tank or is it a canopy. Maybe you can post a pic. They sell retro fit kits .