Nitrogen deficiency or what?

About a week ago I noticed yellowing in the lower leafs of a few of my plants. Everything indicated it was a nitrogen deficiency which made sense. They were in smaller pots & had only gotten a small dose of FF big bloom & caliMagic up until then so I added a bit of FF big bloom to the next feeding & the next morning most of the lower yellowing had started to improve.

Now a week later there is still a bit of yellowing on a few bottom leafs with the tips sort of brown/dying while the rest of the plant couldn't look healthier. I even have 1 plant showing slight signs of nitrogen toxicity now so I'm not sure what's up.

Being the very bottom fan leafs I'll end up trimming them off eventually & haven't been too worried about it however I'd like some 3rd party input/feedback on the matter.

I've since transplanted them into a mix of 70% FF ocean forest & 30% perlite. I'm assuming the FFOF should keep them good on nutrients for a few weeks so just been adding caliMagic & PH to 6.5.

Any ideas? Or are the bottom leafs just looking that way as a result of the inital nitrogen deficiency?

They're shaded out baby leaves, it's normal for the plant to let go of them once they've done their job. No need to add N, you've got plenty

Yeah? I figured somethibg like that. Should I just leave them till they die & are ready to fall off or would it help to trim them sooner?

Grower preference, doesn't particularly matter. I wait until they fall off themselves, or hack 'em during the first round of topping/pruning if they're still there.

Plants look great though, don't stress it. Good work so far

Thanks they're my 1st official grow. I topped them the 1st time last week btw.

Ok so I just got a huge lesson in soils and fox farm happy frog and ocean forest. I used frog then forest and used the nute schedule from fox farm (ff) After 2 runs with this schedule I got the same result twice. Both times I Nuked the hell out of my plants with waaaaay to much nutes. I am a novice but live in Mich and have lots of access to good growers. My Yoda asked me "did your plants start amazing then burn up , get tip burns, start to herm , smells like hay, and no real crystals ? " I'm like dude that's my 2 runs to a tee!!!!! and I run 2 p900 platinum leds in a 10x10 gorilla tent in a super clean I mean clean space. Ruining my fans my fresh filtered air coming into the tent and venting out to the outside thru my charcoal filters. I did everything right besides talking to experienced growers. Yoda told me " the ocean forest has so many built in nutes that I can go 4 to 6 weeks in veg with just water ! I'm like what,!????? No veg nutes ?? He's like fuck no kid, when ya flip the lights to 12/12 then use " heavy 16"once a week in flower w some molasses and just test the runoff. ". I knew i was doing something wrong but what ff won't tell ya is that ya don't need nutes w that soil. Yoda said in the flower the plants will then tell me what they need. ( cal meg , fire , prime, or flush finish). So all in all DONT NUTE WHENUSING OCEAN in veg. Then add nutes in flower. And don't use ff nutes. Go get heavy 16 bud A and B. Hope this helped. Wish I would have googled ocean farm and over nuting along time ago !! Happy growing.

I knew FFOF was hotter & as soon as I transplanted to it I switched to only using caliMagic & great white mycorrhizal for now, probably till flower, we'll see.