Mini Wool Cube, placed in an 11 liter pot, peat, perlite Watered without much drainage, this mini cube has settled into its new location, a vision of how pH can be managed by mixing these media. Light soil only peat/perlite, so I am watering avoiding high runoff. Just what it takes to see the output track Foliar application, certain time after the twilight of the lights. I placed the LED closer to the cup.