Question for those running C02

rollyouron · Jan 2, 2022

I consider myself a experienced grower until now. I built a new room last year.. Everything is the same except I added a mini split co2 and the room is completely sealed. Same grow methods I've been using for around 6 or 7 years with very good success. I'm struggling now. Most of plants are dying from the bottom up. I'm not sure how I missed this info but when I read it I thought it said you could run temps from 85 to 95 degrees. I've been running running 75 to 77. Reading more on co2 it says you must run higher temps are your plants will die. Do my fellow growers think this is my problem?

jondamon · Jan 2, 2022

rollyouron said:
I consider myself a experienced grower until now. I built a new room last year.. Everything is the same except I added a mini split co2 and the room is completely sealed. Same grow methods I've been using for around 6 or 7 years with very good success. I'm struggling now. Most of plants are dying from the bottom up. I'm not sure how I missed this info but when I read it I thought it said you could run temps from 85 to 95 degrees. I've been running running 75 to 77. Reading more on co2 it says you must run higher temps are your plants will die. Do my fellow growers think this is my problem?

You should use higher temps when running Co2. Although not ideal being lower it shouldn’t cause you to kill plants.

What ppm are you achieving with your Co2?

If they are dying from the bottom up (assuming you mean turning yellow and dying?) could it be that they need more nutrient supply to cope with the extra growth achieved with the Co2?

Hobbes · Jan 2, 2022

rollyouron · Jan 2, 2022

jondamon said:
You should use higher temps when running Co2. Although not ideal being lower it shouldn’t cause you to kill plants.

What ppm are you achieving with your Co2?

If they are dying from the bottom up (assuming you mean turning yellow and dying?) could it be that they need more nutrient supply to cope with the extra growth achieved with the Co2?

i was running around co2 1500 ppm my nutrients I was running around 1.6 ec

rollyouron · Jan 2, 2022

Hobbes said:
Pics

I was to ashamed to take pictures. I should have. It's happened on my last 3 runs Not all but half start dying during flower

rollyouron · Jan 2, 2022

I'm trying 1 more run with higher temps co2. If I have same problem happens I;m ditching the co2 and adding a fresh air vent.

BestBudz_Grow · Jan 3, 2022

Co2 levels at 1500 you need your VPD dialed, and plants constantly being fed. They are going to be hungry especially at the rate they will be growing at, yellowing bottom up indicates nutrient deficiencies. Give em a little more food and make sure they stay watered. Keep temps upwards of 80-82 and humidity at 70 in veg, decreasing to 55 at beginning of flower and slowly down to 45 near the end. Foliar sprays tend to help keep them happy too.

Question for those running C02

rollyouron

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jondamon

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Hobbes

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rollyouron

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rollyouron

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rollyouron

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BestBudz_Grow

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