We started a lettuce/ salad green mix today. The goal of this project is to see how cheaply we can grow hydroponic salad greens. The seeds were free from heirloom seeds, the tray is recycled, and the jiffy peat pellets that the seeds are planted in cost $2.79. Of note, is that I forgot to buffer the water to start the seeds, and that the seeds are so tiny that there are probably from 3 to 8 per pellet. They are being stored in a dark place, on a heat mat for the next couple of days.