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Set up a CO2 tank this week after I added another SF light (now a SF-1000 and and SF-2000) so now 300 watts of LED full spectrum lighting with an extra Flower Power UV bulb running 2 hrs per light cycle. All the reviews for the SF-2000 claim too low PAR values in the corners of a 4x2 setup, but better for 3x3. By adding the extra SF1000, it evens out the PAR map greatly.
Since temps were approaching 90 in the tent with an extra light and summer weather, I figured I should throw more CO2 in to help them cope. I wasn't getting above 500 ppm with the Pro CO2 bucket so I went in on a Co2 tank. I have the regulator set on the lowest possible setting, so barely 0.3 cuft/hr. Gets my CO2 levels in the tent between 1500 and 1600 without fail, even with an exhaust fan. I'm stoked to run CO2 throughout my next grow. With the added light and CO2, I'm hoping it will cut down on the overall cycle time in Veg while plumping up the buds for harvest.
Buds look great, top shelf for sure! Awesome move on the co2 to account for temperature. I'm growing in deschutes county, barely surviving these temperatures myself 😂 Good luck!
@BigDickBazuso, yeah the heat has been tough. I have fresh air circulation but keeping the garage below 90 was impossible. I lose a lot of CO2 but I feel like it saved the plants from the heat. Have gone through 2, 20 lb bottles in a month though. I'll probably stop after this next one runs out. I can make the system closed just not between May and October.
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