hI so i've been running this tank for a few months now and all I have for lighting is a small 7 watt bulb that came with an old minibow tank I had. I generally only turn on the light when I'm feeding or looking at the fish, and the rest of the time the light is off. the tank is right next to a window so light is shining in on it all day, so I figured why keep the light on during the day. but then I saw on a forum somebody said you're supposed to keep the light on for like 8 hours a day. my tank is not planted so lighting has never been a problem, but does the light affect the fish's health at all? should I be keeping the light on? and if so, should I keep it on all during the day or all during the night? the bulb is so dI'm you can barely tell its on during the day, what with the sunlight on it all day. and I'm not concerned about algae growth at all because in all the time i've had the tank iv'e never once found algae in it. but so should I start leaving my light on? or would a 7 watt bulb not affect it at all and maybe I should invest in some better lighting? I have been thinking of maybe buying some live plants but most require good lighting and I figure my little old 7 watt buld wouldn't suffice. if I DO need to buy some better lighting, what would you recommend?