Run-off got pretty high on the plants in the main tent when I tested it this week (2300ppm) so I flushed the plants down to around 900 over a few water events with half-strength nutes (~450). I think this, plus (mainly) the plants being too close to the LED caused them to throw some foxtails - particularly the middle plant (although I still think that spindly shit is also partly due to the bag seed pheno). Noob mistake on my end and I didn't realize until it was too late. Now the light is turned down and the run-off is back in a good range. It got high because my auto-watering halos were mostly running off the pots and not sinking in - this is because I filled the pots to the brim with coco (another noob mistake). Looks like I'm hand watering until harvest :) Big Mumma in the blurple tent on the other hand is still killing it.. Apologies for having to upload videos of the microscope - too hard to hold it still and press the button for photos lol.