first grow need help

matty-berk · Apr 17, 2020

hey! a couple of my seeds are turning yellow and i dont know why, i water them with ph of 6.5, the temp is 75, and i have two fans running and a 1500 watt led. some of the seeds are thriving but one or two are starting to yellow. any suggestions?

COtransplant · Apr 17, 2020

Do you have a pic? Environment is crucial. Why 2 fans? And how old are the seedlings? What grow medium are you using?

matty-berk · Apr 17, 2020

i will try and take one. i just used two to get more airflow across them, and they are over a month old but are just now starting the second set of leaves. i wasnt using the right ph water until two days ago.

donkynutz66 · Apr 17, 2020

matty-berk said:
i will try and take one. i just used two to get more airflow across them, and they are over a month old but are just now starting the second set of leaves. i wasnt using the right ph water until two days ago.

It seems like your answer is in your response, it possible improper ph can and will stunt growth

matty-berk · Apr 17, 2020

donkynutz66 said:
It seems like your answer is in your response, it possible improper ph can and will stunt growth

ive been trying to raise the humidity. it stays at about 38 - 40 for some reason. do you think that is a huge factor?

donkynutz66 · Apr 17, 2020

It’s possible depending on pheno type and if the plants genetics are used to high humidity then It would make sense. For the most part I Am a outdoor grower so I deal with Mother Nature but my grow right now is low 30 humidity and it’s just fine. Here is a website that explains VPD https://www.dimluxlighting.com/knowledge/vapor-pressure-deficit-vpd-calculator/. Lots of science behind it and people swear by it, but I also know lots of people who grow in low humidity without any problems.

first grow need help

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