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- JEAN-O’S VOODOO
I use hydroguard I don't still don't trust it...I'd double check that info. A little algae probably won't hurt anything, but a bunch of it is really not the kind of biology that works with the plant to help it grow.
All you need for "sunblock for the roots" is some straw mulch.
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How To Protect Your Cannabis Crop From Algae - RQS Blog
Algae can deprive cannabis plants of oxygen, increase the risk of pests and disease, and alter the soil pH. We'll teach you how to prevent and treat the issue.www.royalqueenseeds.com