Batch 2 - Day 22 All looking good. The single lettuce per pot seems to be helping as well, with less crowding and eacg lettuce getting sufficient access to light and nutrient. So far the pool noodle seems like a good substitute, able to provide support for the lettuce and little or no stretching post transplanting, are observed. EC1180 pH6.9. Added 15ml of AB and 3L of water, followed by 20drops of pH down.