I am looking to upgrade my fahaka puffer to a 150 to 180 gallon tank. I want to make the tank a display piece with plants. The plants I am looking at are all "medium" level. Is there a way to achieve the 2-3 watts per gallon without going broke? It seems like I would need a lot of standard bulbs and fixtures. I was looking at the compact fixture and some of the higher output fixture but those also seem very expensive. Any advice would be appreciated.