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Metal Halide vs Mercury Vapor lighting?


 
 
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Old 02-13-2009, 01:11 AM
jiffy jiffy is offline
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Join Date: Feb 2009
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Default Metal Halide vs Mercury Vapor lighting?

Hi Ron! Great site!! What's the difference Between metal halide and Mercury Vapor lighting? would Mercury Vapor work well enough for veg. growth? appreciate any info you can give on this? also, I have Built your 11 plant Garden, and have recently transplanted my first Crop. I notice that the lower leaves are turning yellow. Is this a nutrient problem? I am using Hydrofarm Bloom/Grow at 1 tsp/Gallon in my 7 gal res. my pump runs for 15 min. every 2 hours and my lights are on 18 hours.

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