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Old 02-19-2021, 10:39 AM   #31 (permalink)
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Default Re: Replaced lights - how soon until I see a difference?

I suspect this isn't bright enough for a 24 inch distance from the substrate, but I couldn't find data on PAR readings, so I'm not at all sure. Low light could cause just the problem you have.
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Old 02-19-2021, 10:42 AM   #32 (permalink)
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Default Re: Replaced lights - how soon until I see a difference?

Well I do have the two focused 32w grow lights I bought because I thought I wasn't getting enough light to begin with. If I use those though, I risk the string algae going nuts again.
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