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Deficiency or not?

I_roll_my_own_420started grow question 5y ago

Hello, anyone knows what could it be? Some of the leaves on one of the plants have little yellowing. Plants look healthy, week 4 and 1/2 of flower. No bugs in my tent 100%. Thanks for help! 🤓

I_roll_my_own_420

I_roll_my_own_420

I_roll_my_own_420

I_roll_my_own_420

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Leaves. Color - Yellow

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JesusChristanswered grow question 5y ago

Beginning of a calcium magnesium deficentcy? Maybe?

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