Leaving the AC on will Atleast remove some of the water in the air, however the cooler the air the harder it is to dehumidify. Is that black tote your reservoir? If so moving it outside your tent will help keeping water temps cooler and help a bit with your humidity as it's contributing to it as well. We all know black absorbs light and heats up quite easily, warm water + an aerator = added RH% .
Your only in first week of flower raise ambient temps to target VPD.
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