55W over a 20L - The Planted Tank Forum
 
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post #1 of 1 (permalink) Old 02-13-2008, 02:02 AM Thread Starter
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55W over a 20L

I just started a new tank because I'm stupid and can't stop. Anyhow, given the success of growing HC emersed in my 55, I planted some in the 20 as well. I have a 30" coralife fixture with a 55W bulb on it right now. It seems to be much dimmer than the setup I had on my 55. Is it time to get new bulbs? When I compare the fixtures by eye, they seem to be giving off the same amount of light, but when I place the 30" above the tank, the light on the substrate seems to be lower.

Eheim Pimp #254, Eheim Wolverine #1


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10 Gallon Planted QT
20 Gallon Shrimp Tank (Work in progress)


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