At this time I am growing several varieties of lettuce to evaluate how they grow, hydroponically, under my specific conditions. I have found that, in addition to being difficult to start, Australian yellow leaf lettuce has a wicked tendency toward tip burn. On the other hand, I have found a variety called Two Star, that is really doing quite well without a sign of tip burn.
The Fordhook giant chard, show in the lower photo, appears that it may turn out to be the very best batch of chard I have every grown, and, I have grown some great chard in the past. These plants are only four weeks from the date that I started the seeds, and they are the most compact chard seedlings I have ever grown, including in the greenhouse.
The Little Leaf cucumbers growning under the red/blue/white LEDs are finally producing female flowers. The EC has been adjusted to 2.4 with a pH of 5.8.