Heat Nute problem, Autofems in SoHum Autopots (15L + 20L)

[SpaceToteToker]

The bottom of my leaves started goin yellow plant feeding on itself, i thought) n thought id put some Dr Forest Bloom2 dry amendment in (had to order if first) while waiting arrival, noticed that was yellowing from the tops down after id amended with OGL's "Reaper" pk boost.
Just getting more n more curling up on the ends n yellowing, Iv now administered the bloom 2 (for 2nd /last phase og flwr) n leaves unaffected ate lovely n 'praying' others wilting n drying.

Any other thoughts tips, lessons greatly appreciated

Iv an OG Kush in a 20L autopot right next to it (a 15L n 20L autopot together in a 2 foot square is quite a fit, with a nice big oscillating fan)
The kush next to it is about 2 wks behind but is lookin so much better.
OG Kush by Discreet seeds,
Blueberry Moonrocks by Anesia seeds.


Run down:
15L autopot
20L autopot XL
Both in SoHum soil and biobizz allmix potted using "cyclops" potting method. (bill ward YouTU8e)
Phd to 6.5 tapwater, sat for 48hrs,
1 unit farm 2000w led
1 Viparspectre P600 600w led
2x2x4 tent with a 6" inline fan, and a 7" hangin fan on canopy.
An oscillating fan 5" for more airflow.

 

[SpaceToteToker]

Top 4 pics are the blueberry moonrocks, the bottom 3 are the ogk, lookin at them now the og is gettin a bit curled up on the ends, tgey drinkin 4 pints every other day... Os that too much in full flower??

 

[namvet25]

Have you given them any cal/mag? ,if not you should flush them with ph cal/mag water and not give aything ellse for awhule.How close are your lights?