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Old 01-16-2007, 08:19 PM   #2
rey
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There's nothing wrong with the type of lamps you're using. It might help to run one set for 8-10 hours and the other set for an extra light spike for 2-3 hours in the middle, as 4 x 35 watts all day seems pretty intense even for a 40 with CO2. Also, look around on the algae section of this forum to identify what you've got and how to eradicate it.
HTH.
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