My lively little watercress plants have reached the second set of true leaves stage of growth, which means they are likely ready to move to an all-water environment. After dislodging a chunk, it was simply a matter of gently swishing the teeny plants in a bowl of water to remove the seed starting mix.
Of course, there were quite a lot of little cress plants left over. I put a few clumps into small mason jars, just in case the buckets don't take off, and the rest? Well, those got a hair cut and became a delicious lunch: