i have a 90 gallon tank with a standard all glass cover and single strip light, i would like to up to lighting but don't have a lot of money, what is the best way to go as far as building a light or buying one at a hardware store etc. also, i'd like it to be an addition to the single strip just because it would seem like a waste to have to get rid of that one to fit a new one, so maybe there are some lights that would fit on behind the single strip, idk, i just am tight on money and looking for any help you guys have
thanks
thanks