Mirror
this is something that a lot of fanatics do in planted fresh water tanks Adam, I was at a web page whare a guy has a 400 watt MH bulb slowly start at one side of his tank and move across over the course of a day to the other side of the tank on a motorized track. he also had hidden floresent lights for ambiant (sp) light.
If I can remember the page I will get you the link.
Steve
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