I upgraded to 12/12 and added co2(1200ppm) to the cabinet on my 5th day today. my light is mars hydro 6500 dimmer 70%. I increased the temperature to 29-30 degrees. I have 7 plants in the tent, only 1 of them is like this, can you help me? Ec:1.3 ph:6.5 container: 20 liters of air .palagron light mix soil
What's the problem with this?
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Emilya Green
Well-Known Member
In general my first glance guess would be that you are feeding too lightly and you also are showing a magnesium deficiency.
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Thank you very much for your reply,What sets it apart from a nutrient blockage or excess magnesium?
Emilya Green
Well-Known Member
The overall color mostly. Where would it be getting excess magnesium? Where would it be getting so many nutrients that there was a blockage as a result?
cbdhemp808
Well-Known Member
An interveinal browning pattern like this is a distinctive sign of a boron problem. This can be a complicated problem involving pH and other nutrients.
Delps8
Well-Known Member
30°C is pretty high. Cannabis will grow, well, at the temperature but a big issue is not just temperature but temperature + RH ==> VPD. If your VPD is high and/or RH low, your grow will have to have to transpire a lot of water to maintain temperature. What's your VPD and water consumption like?
Nice that you're running CO2 - I'm in a 2' x 4' in a garage so I'm limited to ambient CO2. :-(
How about light levels? Bugbee recommends 1200 PPM for CO2 and 1200µmols. A nice light like that deserves a light meter. I've used a Uni-T and just learned that they're only $25 now. Money well spent.
Nice that you're running CO2 - I'm in a 2' x 4' in a garage so I'm limited to ambient CO2. :-(
How about light levels? Bugbee recommends 1200 PPM for CO2 and 1200µmols. A nice light like that deserves a light meter. I've used a Uni-T and just learned that they're only $25 now. Money well spent.
