Calcium Problem?

I am using Gaia Green All Purpose 4-4-4 and Gaia Green Power Bloom 2-8-4 with Worm Castings and Fox Farm Coco Soil. I added the mix on November 1st and switched the lights to 12-12 on the 6th. I usually water 2-4 days, but never to where there’s any run off. Today I decided to water with PH 6.5 till I saw a little run off and noticed that one of the plants leaves appear to have brown edges or spots. I’m terrible at figuring out what nutrient problems I am having, but I believe it to be a Calcium deficiency. If anyone knows if that is what’s wrong or if it’s something else, any advice on fixing it will be really appreciated! Thank you!

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Looks like the start of a potassium deficiency to me, but you should wait on some more experienced growers to chime in before taking any action.

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Thank you for your input, greatly appreciate it :smile:

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