Most all of my plants, Hash, Blueberry, Tashanity,and a few bag seeds, seem to be having the same problem. 3 week veg clones all the way thru 5 week flowering plants but at different stages. This is my 5th grow which certainly does not qualify me as an expert grower but I do understand the basics. I am stumped!

Coco w/20% perlite. Second use, flushed to EC of <80 PPM and treated with
CalMag to 250 PPM.

Indoor, sealed grow room adding CO2 @ 1200 PPM (no air enters or leaves grow room).

Lights on 72 -77F / lights off 65F

RH 45% flower room and 65% veg / clone room.

Fertz. Base h20 250 PPM + DutchMasters Gold A+B to 600 PPM.

Runoff averages 500 PPM with ph @ 6.0 - 6.3

2000W HPS. in flower room 24" from canopy

2, 2 bulb 4' floros and 4 18" single bulb mounted vertically in each corner in veg/clone room.

Pics are from younges, least sever to oldest, most sever.

The last pic is of what is left of a blueberry plant that I have since scrapped.
I have 3 week old clones and hope to resolve these problems to save the strain. And finally, yes there is some mite damage but is now at least under control.

The only thing I can think of is my PH meter is off? I calabrate it once a week at least.

I have done everything I can think of and seems the problem is just getting worse! Help! Thanks in advance.
tip302327 Reviewed by tip302327 on . Stumped! Most all of my plants, Hash, Blueberry, Tashanity,and a few bag seeds, seem to be having the same problem. 3 week veg clones all the way thru 5 week flowering plants but at different stages. This is my 5th grow which certainly does not qualify me as an expert grower but I do understand the basics. I am stumped! Coco w/20% perlite. Second use, flushed to EC of <80 PPM and treated with CalMag to 250 PPM. Indoor, sealed grow room adding CO2 @ 1200 PPM (no air enters or leaves grow room). Rating: 5