The Planted Tank Forum - View Single Post - How often do you change your bulbs?
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post #3 of (permalink) Old 02-15-2013, 04:06 AM
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Join Date: May 2008
Location: Los Angeles
Posts: 3,272
I have CF bulbs that I forgot they are over 2 years old. I just had them changed last week.

Ive seen a lot of the difference on plant growth and lot more pearlings than the old ones.
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