Hi everyone, i'm currently looking to change 4 x 36" T8's on my tank canopy to 4 x twin T5 lights as in the link below. So i would be able to have 8 x T5 lights, but also not sure what size bulb each would take. http://www.theaquariumsolution.com/?q=node/205 The reason i'm going for these as they will fit in the unit side by side, and i can also control all four individually. But basically would this give me enough good light for the whole tank, and how much? The tank is 2000mm x 600mm x 60mm, and contains 720 litres, which is about 160 uk gallons (i think). I've also thought about going to halides and illuminaires, but i the wife won't go for this, unless there is some other way of hanging, but not from the ceiling or wall brackets.