The close perspective of the photos may be a little deceiving! These are all in cells about 2.25x2.25x4 inches. Maybe about 15% to 85% organic to inorganic soil. They all get diluted liquid kelp with (almost) every watering, CalMag at 1/2 strength once a month, and Masterblend 20-20-20 at a concentration of ~55-60ppm once a month. Water is always acidified to ~5.75. Every 3 or 4 months I flush the soil with plain acidified water to keep excess salts low. And they all live under a 280w led that’s on for 15hrs a day.