| 75 Gal with T5 lights - how many bulbs? I am planning my 75g display and have all but decided on T5 lighting because it is too hot in S.C. without a chiller to run MH I believe. My plan is mostly LPS and softies. However, I would like to try a few SPS and perhaps a RBTA. My aquascaping plan will allow for these to be in the top half of the tank. So my question is, how many bulbs should I get? I am looking at the TEK fixture and they go up to 8, but do I really need that many? |