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Had given each seedling about 10 mL each of plant food. The roots on the Gorilla Glue had exploded out of the bottom. Was working hard to get the RDWC setup complete. So I had to let them sit in the trays under the fluorescents for a week longer until I got he RDWC sealed up nice and tight without any leaks.
Finally got the RDWC system complete and the girls are in and under the LEDs. Started with the LED light elevated higher than recommended; didn't want to cause light burn. About mid week I bumped the TDS up to 350 and lowered the light elevation to 18 inches and they responded very well.
Bumped up the nutrients this week. not by much, though. Just enough to top off. I prefer to make gradual increases and underfeed rather than overfeeding. To me it's easier to correct problems of underfeeding than to correct the problems from overfeeding.