So, I took a look at the root system of one of my plants tonight - the plan was to change out nutes, but... Anyway, theres a section of where the root is turning brownish - pic attached. Anyone know what this is? No signs from above as the plant is doing well and lots of new roots and growth. This is a strain called Power Plant - pics attached. Grown in DWC. PH always between 5.9 - 6.2. Using GH 3 part nutes - presently at about 1000 ppm. Last water change was exactly 10 days ago. It was germinated on November 20, put into a system on the 26th. So, 5 weeks old. Also, it was topped 4 days ago. Not sure what else needs to be shared...? BTW, the roots are twisted due to the bubbler/stone being off center, close to the wall. I used a cheapy 6" Wally world long stone while waiting on an online order. I honestly still haven't changed it. Plan was to do it with the reservoir change - will be tomorrow if all goes well. If not, the day after Christmas.