Looks good man. You are doing a lot right, You got the temp gap nice and close between lights on and off. This is exactly what we want in veg and early flower, If we expose the plants to large temp swings over 10 degrees less when the lights go off we will cause the plants to stretch a lot. The only thing I would suggest is raising the temps slightly. Cannabis plants love heat and humidity it is the buds that hate it. So in veg we can exploit that fact for some real good vigorous growth. Low 80's with lights on and no more than 9 degrees less with lights off is a good rule of thumb. If you do not have them already get yourself a PAR meter and a thermal temp gun like a fluke 62 MAX to help read your plants and get the most potential out of your lights onto them without over doing it. If you have yet to do so, Research VPD ( Vapor pressure deficit ) and how it relates to growing cannabis. Print yourself off a chart and begin following it.
Keep up the great work man, If you got a minute please check out my 200 light 7,000 plant diary & follow my profile. If you ever have any questions please feel free to ask. Happy growing !
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