Issue with some nutrient deficency Mn or Mg

KaIGrow

420 Member
Hi guys, I've a big trouble, maybe it's something wrong with water PH, I think it's a deficiency of Mn or Mg but it's so strage.
It's my second experience, with 6 plants (3 cheese, 2 Think different and a Magnum Gom)
They are 40 days old and on the biggest plants, the two Cheese, I've this issue of 4 leaves.

They are indoor, with Led light, temp and humidity are right.

This is the first time I have this problem, compared to the first experience where I lowered PH by CO2, stupid choice but that worked, this time I run PH with a low PH product, 4 ml for 2 liters of water, bringing the Ph ranged between 5.5 and 5.8. Is a flowering product composed of phosphoric acid.

Thank you for any advices.

Strain - Cheese Autoflower
# of Plants - 3 (6 in the grow)
Grow Type - Soil
Grow Stage - Vegetative
Setup - Pot
Light - 200 Watt LED
Nutrients - BAC
Medium - Lightmix
PH - 5.5
RH - 50% to 60%
Room Temperature -77 to 82
Solution Temperature -77
Room Square Footage - 10
Pests - None Known

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Thank you so much, I already did it, with ph 6.8
For the leaves no more problems because I already cutted them cause I think in that status, their photosynthesis apport are low and they make shadow on lower green leaves.

Thanks again and kind regards,
 
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