Seconding Aiken Drum's advice. There are some really nice programmable lights on the market now, and some of them are even inexpensive.
Another trick is to build in an hour or two mid-day with lights off. Since I added a regular rest period into my lighting schedule, I can have lighting on longer overall, but algae problems have dropped off dramatically.
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joy to the fishes in the deep blue sea
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55, 30, 30, 20, 10, and 10-gal. freshwater tropical tanks
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