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What is the best way to use uv light as a supplement? Should you use it throughout the entire flowering period, or should you just "shock" the plants with it the last couple weeks before harvest? Also where can I find good uv lights? Are those reptile desert fluorescent lights anygood? Thanks in...

Hey everyone. This is officially my first post. I was wondering if anyone knew how long the roots can stay submerged in nutrient solution without any bubbles in case of a power outage before damage begins to occur. Thanks to anyone who replies.