| Re: 2 20 watt coralife screw in u shaped ccompact flourecent
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Originally Posted by bballsosh I would $8 per bulb and i you uy both then free shipping. Perfect for and incdescent or diy hood over a small tank and would give 4 watts per gallon for a 10 gallon. | Incorrect. Due to restrike, 2 20W bulbs is equivalent to approx. 1.5w/g-1.75w/g. Never go by the w/g rule on 10G tanks, especially with screw-in CF's. I'm running them, so I have a pretty good idea on the lighting, and that's where I would rate them. And for other reference, if anyone get's the 25W bulbs, it's equiv. to about 2.25w/g. I'm running those too. 
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26G Planted - 65W CF Lighting - Emperor 280 Bio-Wheel - Established Feb 2004
55G Filstar XP3 - Will soon be empty and cleaned out.
75G Heavily Planted - Filstar XP3 with spraybar, Medium Light - Established Feb 2006
29G - 130W Lighting, Filstar XP2 with spraybar - Soon to be empty.
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