I am seeing an issue with the lower fan leaves and...

Hey there EN, what's going on is related to Nitrogen , you can tell from the oldest leafs affected first yellowing then falling off easily. It looks just like an N deficiency but in fact it's an N lockout. This i can tell because I'm seeing burnt tips typical of nutrient burn and you've been feeding N in several different ways leading to a problematic build up. As far as I can tell you're giving N with the Tea, the Micro, in both bloom and grow, as well as a tiny little bit in the Cal Mag. from now on if you only feed once every two plain waterings and cut out as much N as possible from your feed the salt build up will eventually dissipate and the plant just might recover. So remember : feed water water feed water water feed, that's the pace of how often you want to be feeding. cut out the bloom (i think that's the one with the most N in it) and commit to either calmag or ph perfect micro, and you should have reduced the N by quite a lot just by doing that. Remember : plain water twice, then feed ! Do this and the plant should recover in a bit over two week's time. Hope this helps ! 🚀