Fuck, you guys are great! Appreciate all the input!
So I pulled it up and rinsed it off with the shower head in my bathtub.
Turns out the chunky looking thing was a piece of black plastic from the bucket when I drilled the hole for one of the hoses. It was all wrapped up in the roots. I untangled it and removed. Gave the rest of the roots a rinse and they look way better and they weren’t falling apart as I rinsed them.
They still don’t look as healthy as the roots from the girl next door(both crop king PK). But the other one i am running General Hydroponics Trio and this sickly looking one is Advanced Nutes.
Here’s a pic post rinse…still a little stained but better than before
Here’s a pic of the General Hydroponics one for comparison. Everything the same with both plants besides the nutes
And three healthy looking girls topside. The one in the back is Blueberry X OG also from cropking ( PS. Ignore the numbers on my temp monitor)