Pistils turning darker color during early flower?

Hello, still working through my first grow, and I noticed today two days after a heavy defoliation some of the pistils which were super white look like they’re turning brownish and shriveling, btw it is only on a few of the bud sites ranging from a top bud to a lower bud, so I don’t think it’s the light. Is this a Normal development, some people say some die and regrow more, others say it’s an issue, so which is it? Some info: dwc, Flora trio, the nutrient solution was running a little hot recently so I did a res change today, temps and humidity is perfect, lights are led and about 14 inches from tallest point 2x240 boards turned about 40 percent. Could pistils get nute burned lol? Sorry I tried to get decent picture quality.
 

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Jpwt92

Active Member
Your last pic looks like you may have some nute burn based upon your leaf tips.
I don't think the brown hairs are of any concern
 
Your last pic looks like you may have some nute burn based upon your leaf tips.
I don't think the brown hairs are of any concern
Oh yeah I tested my ppm prior to my res change and my plants drank more water than I anticipated and it went a bit too high, I didn’t fix it cause I just did a whole system change so it’s back within good levels again
 
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