new leaf growth problems.

i’m currently seeing thin blades on new leafs / new growth which could be down to over watering or low ec under led , not too sure. any way here is my set up -
4x8 tent ( using half at the min so 4x4 ) 6 x 16 liter fabric pots (60/40 perlite ) all with strawberry diesel all 4 weeks from seed . using canna coco a and b at 2ml per L rhizotonic and canazyme 100 ML each all in 50 liter res . E.C = 1.1 .
using migro array 4x4 500w led set at 60 o/o
40 cm above the canopy .
watering on a timer at 6 pm to 6:07 pm split into 3x18 seconds feeds then again at 9pm to 9:07 split into the same x 3 feeds then last feed is at 11pm to 11:07 with the same feed time and that is when runoff starts and i end the feeds untill the following day .
temp 26 degrees celsius humidity 65 percent vpd 1 sometimes 1.10
i have been dosing co2 for a few hours each day via bottle and regulator also using inkbird co2 monitor to reach 1000 pppm a few hours a day .
the problem i have i am guessing as i transplanted into 16 L pots very early from rockwool cube around 2 weeks /3 weeks old so i may be over saturating the coco ? problems with calcium magnesium uptake ?
maybe i need to add cal mag as i have never run them under a led before
my tap water does not measure anything on the blue lab truncheon so i have 0 ppm water but canna coco a and b should have enough cal mag ?
i’m also thinking maybe it’s feeding / saturating too much for the age which may be causing limited access to immobile nutrients or lack of calcium or mag uptake .
anyway i would appreciate any one chiming in with any advice , thank you for taking the time to read my post .

Cannabis deficiency chart link in my sig.
Thin edged leaves are mentioned in an excess of phosphorus and/or potassium.
I don't know that you can oversaturate coco. I haven't used it straight though.

Only thing your doing to much of is thinking. They look extremely healthy, the leaves look fine. Make sure you have plenty of airflow with that canopy.

Roy O'Bannon said:

Cannabis deficiency chart link in my sig.
Thin edged leaves are mentioned in an excess of phosphorus and/or potassium.
I don't know that you can oversaturate coco. I haven't used it straight though.

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thanks, i do have 60/40 ish perlite i think i will skip a day of watering as the pots are big enough to the size of the plants and hopefully fill them out more with roots before watering daily

Mumbeltypeg said:

Only thing your doing to much of is thinking. They look extremely healthy, the leaves look fine. Make sure you have plenty of airflow with that canopy.

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yes a think it’s time to defoliate but i want to take cuttings too at the same time so i will be prepping for that very soon , i hope to fill each square with its own flower sight with uniform height and space .

Turanchala said:

yes a think it’s time to defoliate but i want to take cuttings too at the same time so i will be prepping for that very soon , i hope to fill each square with its own flower sight with uniform height and space .

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Look up tuksu6000 here on roll it up and check out his thread if you want to see some info on building a nice canopy.

Mumbeltypeg said:

Only thing your doing to much of is thinking. They look extremely healthy, the leaves look fine. Make sure you have plenty of airflow with that canopy.

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atm for air in and around canopy i have an ac infinity fan and tower fan on the lowest settings but they do not seem to like direct air idk . thank you again for the advice

Everything is looking good.