Without use of a chiller , use hydroguard or General hydroponics subculture B , they are lactic acid bacteria , Bacilllus strains , they prevent root rot (pythium) when temps get out lf control , and coupled with GrowSil Biosilica ,keeps water stable .
PM me if ya need biosilica and LAB ...
Organic Grow Journal
https://www.thctalk.com/cannabis-foru...d.php?t=163164
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