09-02-2010, 06:47 PM
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Originally Posted by TFish
I don't know what I'll be getting yet, but my choices are probably 2 10, 15, 20, or 25 watt 6500k bulbs, but I don't have a hood yet, so I really don't know...
Over a 20g I would get an incandescent hood; they are considerably less expensive, and with the Compact Fluorescent bulbs now available provide excellent light. I recently got this type of hood for my "spare" 20g, and I have two 10w Daylight bulbs 6500K by GE which you can get in hardware stores. The light over this tank is to my eyes the same as my large tanks, and the plants grow superbly. Here's a photo; it's is not "aquascaped" or anything, just a mish-mash of plants from the main tanks, and a few new ones awaiting planting.