I currently have two 18 inch t8's that came with the tank from a friend. The bulbs are old and I want to have something better. I was looking at the Marineland ML Double Bright LED Light, 36-Inch to 48-Inch. Is this as good as a 4-8 bulb t5? I currently only have a couple damsels, and wanna do a light upgrade before I venture out to get more fish or some corals. Any help would be appreciated.