02-04-2010, 07:41 PM
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Originally Posted by iamntbatman
Agreed. Just a heads up: Wal-Mart sells a screw-in CFL in their aquarium section for $4-5 a piece that's perfect in these applications. Sometimes regular screw-in CFL's (the ones designed to replace regular light bulbs around the house) are too fat to fit into those incandescent hood fixtures.
The ones wal-mart sells are 10watt... If you have two sockets I'm not sure it would be enough light for many plants. I would buy the cool white minis (at least 18 watt) and try them. If they don't work you can use them in your house and try the next size smaller.
They'll probably be a tight fit being fairly wide, but their shorter length than incandescents usually means the reflector in the hood will work better.
The CFL minis at wall mart are 9.99 for a 2pk where I live. If you have plants, I would go with cool white. (since full spectrum are so expensive... Everyone said they cast an unatural light, but I tried some in my tank once and it liiked fine to me.)