So I have a 12 gallon tank, so about 75 watts should grow the easier corals, no? So instead of getting a 75 watt bulb, but can i instead get something like two 40 watts? Even thats hard to find tho, because im using an eclipse that 21" long. Can anyone either give me a suggestion, or a link to solve this? I found a retro fit that is made for eclipse, but it said its only 35 watts. So can i find a way to get that higher? Like double?