Using compact fluorescents in an incandescent hood - The Planted Tank Forum
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post #1 of 5 (permalink) Old 04-06-2004, 06:29 PM Thread Starter
Algae Grower
Join Date: Apr 2004
Location: Ottawa,Canada
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Hi there,

I'm looking an converting my existing 10G tank into a planted tank. Until I find out if I've got a green thumb or not I don't want to spend too much on the conversion.

On the lighting side I currently have an older incandescent hood. I picked up a couple of compact fluorescent bulbs from Home Depot that just screw in. Will they will do the trick? Don't know what K they are. Also in terms of wattage, they are 13watts each but say that they are equivalent to 60watts...which number should I use for the 2-3watt/gallon calculation?

Thanks for any help.
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post #2 of 5 (permalink) Old 04-06-2004, 07:34 PM
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Location: Northern VA
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Always use the real wattage. So in your case 13 watts each. 26 watts is low to mid lighting and there are plenty of plants to choose from that will do well with that much. My only concern would be the light rating. The compact that fit the edison screw in socket don't often give the rateings so you really don't know what kind of light you are dealing with. I would worry the lighting would be to yellow.

Hope that helps

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post #3 of 5 (permalink) Old 04-06-2004, 08:30 PM
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Supposedly the color temp doesn't matter to the plants. I'm not convinced of that just yet, but here's a few tips: coralife makes a 10 watt, 6700k screw in power compact. Also, some Wal Marts carry a $5 knock-off of the coralife bulbs, so you might check them too. I think all-glass makes a 10,000k screw in PC, which would grow plants too.
Since a 10 gallon is kind of shallow, you might get some pretty good growth with just 20watts. I have 23watts over a 15Tall, and my cabomba is doing is the algae.

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post #4 of 5 (permalink) Old 04-07-2004, 01:18 PM Thread Starter
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Thanks for the comments. I'll be picking up 2 of the all-glass ones today. The ones from Home Depot were only 2700K.
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post #5 of 5 (permalink) Old 04-07-2004, 03:30 PM
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Are those the "Marathon" bulbs? If so they will work, but they certainly arent the best. I used to use 4 of those over my 22 gallon. It worked pretty well, but I found that the colour was far to red then I prefered.

Panasonic also makes a decent screw in CF bulb, I've used them with pretty good results.
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