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Old March 29, 2018   #40
Ricky Shaw
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Join Date: Aug 2015
Location: Zone 6a Denver North Metro
Posts: 1,910
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Hard to tell, but it looks like diffuser shields over the bulbs. If so, I'd remove them. Also what's your lighting schedule? On seedlings I'm a minimum of 12on and 12off, and prefer 16on/8off.
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