so my power company is taking off the cap of off the meter outside of my house in feb 2010, and they are doing that for everybody in the area. I want to use white led christmas lights in a 29 gallon tank. I have seen how people have built them on here and it seems simple. But theres one thing I cannot figure out, how many of the string of lights do i need. would one string of 60 be fine for a 29 gallon tank. If this works then I want to do the samething on my 75. so all of you led wizards its ur turn to help me out