tommytwotone said:

so I am 4-5 weeks into my first real coco grow and I think I hit a wall

all of my plants where growing great and packing on bud. then all of a sudden like a week ago they stopped growing, the buds stopped developing
and now I am developing red hairs (seems way to early)

The only change that I made recently was to remove the automated watering and water by hand.

When automated I was watering about 1.5 liters a day of 500-600 ppm water

now by hand watering I am watering every 1-2 days about 1 gallon of water at 400 ppms

Could my lower ppms be causing poor bud development?
or is it possible that as compared to my aero grows my bud development will be substantially less

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