Two things that are sticking out to me are the lateral root growth and the strong side shoots from the nodes. I remember the last few SD IBL I grew out had strong side growth during veg. Everything is looking good, they didn't complain at all after feeding them all to a good amount of runoff and then putting them back in the res with fresh nutes. I had to guess at the PH down I needed to use as I'm without a PH meter, but looks like I got close enough.
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