Pistils turning brown and black in week 2 of flowering

Trying to get some opinions on this. I'm in my 2nd week of flowering and pistils are already turning brown and black and the affected buds are producing very little resin. I have an ebb n flo hydro setup using 4" rockwool cubes on a coco mat. Running GH nutes with dechlorinated water. Ppms at around 1000 right now and from my daily ppm readings they seem to be eating a lot. Thought it could be toxic salt buildup so I flushed yesterday figured it couldn't hurt. This grow I've flushed every 2-3 weeks but on previous grows I've not flushed as much and not had these issues so I'm not sure if toxic salt buildup is really my problem. Maybe these strains are more sensitive to it? Gods bud and AK-47. Anybody had this issue before? How'd you fix it? Anyone have experience with GH nutes because my flora nectar has some chunks in it and I'm wondering if spoiled nutes is what's causing this. Any suggestions or opinions would be greatly appreciated! Thanks!

I think that if you do a PH run off test it will be majorly out. Did you check the flush? Did you water a lot in the beginning when the plants were small?

Is it mushy? could just be genetics if no problems with leaves.

lahadaextranjera said:

I think that if you do a PH run off test it will be majorly out. Did you check the flush? Did you water a lot in the beginning when the plants were small?

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I extracted a water sample out of one of the cubes and the ph was right on. I didn't check the ppms of my flush water after I ran it through. I guess I should have. I'll definitely do that next time. When they were small I watered as needed every 2-3 days. Now I water once a day and it seems to be perfect for them. Whatever this is is not affecting the largest healthiest plants that are in the center of the light as much. I'm gonna try to post a couple pics of a healthy looking bud and one that has what I'm talking about.

are both strains reponding the same and yes ur necter is past its prime didnt frezze by any chance or its OLD as dirt itself only good for 6-10 months tops just buy sized con u can use in 6 months

sounds like windburn

In case anyone cares. i flushed then lowered my ppms and all the plants have recovered. buds are swelling fast and resin production is booming! i think it was a combination of salt buildup coupled with high ppms. less is more!