I've got a 30 gal planted tank, with 36 watts of flourescent. As you see it's very low light, and the hygros are stretching after the window in the room, and there are alot of romm between each leaf set. So i need some more ligt. I got CO2, and fertilize with iron and maybe soon macro nutrients(if i get some more light). The hood i got now can hold two more flourescent bulbs, but 2 more, wil not add alot of light. Do you guys(gals) got any ideas on what light to use? It has to be cheap. Dimensions are 32" x 16" x 16".