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!
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.
Thank you for your input, greatly appreciate it 