Yeah its been on for a few hours now, and its already beginning to be a normal sound, kind of soothing actually. What kind of lights do you guys think I should look into? they have all kinds, but I really think I like the halides the best, they just seem more compact and clean looking, but they are more powerful than I need even. Should I go for 2 24" lights or 1 48"? They have some decent priced compact fluorescent with lunar lights, 24" 130 watts (2x 65 watt) + lunar lights for 114.69, or a 48" with 4 65 watt for a total of 260 for 212.49... What are the pros and cons of each type of light, the book I got didn't cover lighting very much, if at all. And how do those compact fluorescent lights fit ontop of my tank? Im assuming they wouldnt fit on my stock hood, cause there are a few bulbs in them comapred to the 1 I have now, What do you use for a cover then?