Wilting plants !!!

[nznene]

Help please ! Wilting plants
we are growing predominantly BCN Critical XXL Auto’s...haven't grown this strain before.
we had mega germination issues from the start .
18/6 schedule
Nutfield coco 70% with 30% perlite
Using air pots
all grow room environment is good..temp, humidity , fresh air in ,extractor air out, fans, music even !
LED LIGHTS 1600 in 2m x 2m and 2m x 2.2m tents comprised of 2x 600 + 1 x 400 (see pix for type)
pH is approx same at roots as fed in (5.9 to 6.3)
we have raised lights to 80cm and dimmed them to half strength. This helped initially but as of this morning there are more plants wilting
We are not over watering or under watering .
water to runoff
we are omitting seaweed added to food as of today because this is a different brand to what we usually use ...smells very different .
We are going to reduce nutrients strength also even tho these plants are supposed to enjoy EC up 1.600.
After lights come on they're good for approx 10 - 12 hours then gradually Stert looking like crap again 😑
has anyone got suggestions or questions 🤔 for us please .

we've been growing in these environments for a few years successfully without any issues like this.

we are flummoxed .

any ideas 💡 please
thanks

[homegrown]

Well nznene, It sounds like you've checked all the boxes..you have had success with other grows in same environment. I've never had tent plants look like that unless I let them get WAY too dry, which you say isnt the case. The only time I have had plants look like that was outdoors in sweltering heat and sun..they would droop like that. I dont know your lights but maybe try dimming them a bit halfway thru the 18hr light cycle? You didnt mention the temperature. Since you've never tried this particular strain before i would start by adjusting lights and heat, possibly more airflow between the lights and canopy might help. You didnt say what music you were forcing them to listen to....maybe change it up a bit..

[nznene]

Ahhh thanks for your interest and reply 👍
yup done the adjustments to lights .
we're going to opt out the liquid seaweed...a new brand and maybe not as friendly as the Tui brand we had always used in the past .
music ?
they have a play list called Gals that has alt country , light classical, grateful dead etc and some acoustic .. quite a mixture really .
cruisey stuff to help cut out the hum and relax those gals 🤣😅😂
Happy growing Homegrown 🤗