Yellow leafs

Is is shiska berry and pink kush
Led 100w 30cm 13k ( lumen)
Soil klasmann
Just pure water form seeds


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You’ll need to get a bigger light. 100 watts is not going to be enough for a good grow. You want between 40-60 watts per square foot of space. For a 2x4 grow space you want 300-400 watts. I have an app called Grow Room Calculator that tells you how many watts are needed depending on the light.

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If you have only given plain water that explains the yellowing, they are starting to get hungry after using all the nutrients available in the soil.

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