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Shirlie's Freshwater Aquariums Blog

By Shirlie Sharpe, About.com Guide to Freshwater Aquariums since 1998

How long should aquarium lights be left on?

Monday February 28, 2005
Aquarium lights usually don't come with a tag saying when to turn them on and off. So, how long should aquarium lights be left on? You'll find the answer in this Reader FAQ.

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