Looks like mg or potas deficiency but hitting top growth first?

I'm growing in living soil, day 23 flowering. My water is around ph 6.2 each time, feeding a mix of bio bizz cal mag, molasses and bloom (kelp). Then coconut water and some fruit ferments.

I dialed back cal mag last water in case it was locking out potassium but the issue looks slightly worse.

It seems to be hitting top (new) growth first which is confusing as it looks like either mag, potassium Def or overwatering which all should effect old growth first?

I've also been foliar spraying neem and silica solution every 5 days since day 18 of flower for a spider mite invasion. I also added ladybugs and can no longer see any mites.

gubblebum said:

It seems to be hitting top (new) growth first which is confusing as it looks like either mag, potassium Def or overwatering which all should effect old growth first?

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You'd be seeing symptoms on older growth, not new growth, were it Potassium or Magnesium deficiency.
Personally I don't see anything to worry about. Looks fine.

If it got worse, I'd suspect overwatering. If you're watering often.
Or lockout, if you haven't been watering until some runoff.

At this point in time, I think everything looks ok!
Not worth the worry imo.

GL.

BongerChonger said:

You'd be seeing symptoms on older growth, not new growth, were it Potassium or Magnesium deficiency.
Personally I don't see anything to worry about. Looks fine.

If it got worse, I'd suspect overwatering. If you're watering often.
Or lockout, if you haven't been watering until some runoff.

At this point in time, I think everything looks ok!
Not worth the worry imo.

GL.

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Thanks for taking the time to answer!

I have been watering once every 4 days, 3 liters of water/food and its in 12 gallon airpots. The mix is a typical 30/30/30 coots living soil.

Maybe too much water?

My other new guess is possibly the vpd has closed the stomatas early, and caused them to have a deficiency by stopping their metabolic processes early.

My humidity has been kinda low on and off!

So my solution is... Going to try less than 3 litres per water, 2.5 litres, and water every 3 days instead. Work harder at keeping the humidity up also!