The Planted Tank Forum - View Single Post - 75g planted discus.. is this adequate
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Old 01-16-2013, 01:48 AM   #6
wheatiesl337
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Best way to tell if the fixture will produce enough light would be to borrow, buy, build a PAR meter. This will help you nail the perfect light intensity for a low-tech, which is important for avoiding algea.

If you do need to upgrade, I would highly recommend looking into LED fixtures.
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