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Discussion Starter · #1 ·
Just got two screw in cf's the ones with spiral bulbs. AMAZING IMPROVEMENT! I cant beleive how much of an increase in light i get. I recomend these to anyone, they are cheaper then buying an the balast n all for the others.

They work pretty well--the only problem can be the heat from the internal ballasts (as I've experienced in nano reefs, anyway...with frog tanks it might not as much of an issue).
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