Hey, i flipped my girls 4 days ago and checked them 2 days later and they had tiger stripes everywhere… i flushed for 2 days and not sure if i have fixed the problem…
Lights a 4x 600 watt hps
Coco
Using professors original a n b
Temp aeound 27 not sure humidity.
I’m thinking bugs or heat stress?
@Covertgrower whats your thoughts? Is there a bug that can do this? Maybe heat?
How high are your lights above the plant?
Is the humidity real dry?
27 may be too much heat for that particular strain.
I have turned the exhaust fan on 24 hours now to curb the heat. The lights would be about 35 to 40 cm. All 6 plants have the same stripes
Thank you. Wheb i checked 2 days ago ph was 6.9. Which is when i flushed
At 35 cm that’s 13 ish inches. Too close.
Raise them up to 24 inches for a few days to let them recover some.
The light burnt leaves won’t recover so look to newer growth for improvement.
Edit :
In coco your target should be 5.8 - 6.0. 
Hey thanks for the reply i will raise straight away and it’s usually.just under 6.0
It does look like light burn although the chlorosis indicates possible need for cal mag. Not seeing if you are supplementing with that or not. But 13" is way too close for any plants using that type of lighting.
Thank you… i have moved the lights up a bit and will get some cal mag tomorroq when shops open. Will the plants be ok as they are 4 days in flower ?
@Myfriendis410
Damaged leaves will not recover. Look to new growth for improvement. HPS lights should be more like 75 centimeters above plants. Maybe more.
My thoughts exactly
Also this:
