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Old 05-08-2009, 04:41 PM   #4
jytong
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Join Date: May 2004
Posts: 114
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A 9W should be sufficient since you are growing only christmas moss.

If the prices btw both does not differ alot, then get the T5 6w x 2


A rule of thumb for lighting will be 2-3 watts per gallons

Hope its helpful
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