Help with diagnoses leaf yellowing and yellow spotting

wash the bucket well once every 2 weeks

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Zinc Deficiency RO water ?

Cal mag yes

I keep writing a response and it dont post it. Very Frustrating

Roberts, overfeed at 1st feeding and been super sensitive ever since

That light has very good instructions for use are you following the vege suggestion? about 26" and 75% power? if significantly different, it's a good chance it was your light. unless you add co2, this is a good starting point or a point for comparison. if it is light-related, do not expect it to just bounce back within 24-48 hours. once it gets stunted it may take a sec. watch resulting growth of internodes.. are they starting to stretch out? Hopefully the above ballpark suggestions for 18/6 cycle will make the answer obvious. if it is the light, raise it further, intiially.. only after normal growth resumes bring it to that new suggestion .. then, you can try to test boundaries slowly. 1/2" at a time or a few percent. othwerise you gotta consider your formula. would want som more info about how it progressed on the leaves.

This is light burn it won't heal. Leaves don't heal. Once they are messed up they are messed. If your light Is on more then 25 percent at 28 inches it is burn. My plants burn at less then 28 in flowering when light is the most intense. Vegging plants require less light.

I messed up and over feed them their 1st feeding and got bad burn and now everytime I try and up the nutrients I get burnt leaf tips. How to up nutrients with out burn ?