Positioning of Rock/Stonewool?
Hello! I just started a DWC system on Friday. I had some spinach seeds germinating using the baggie/coffee filter method. Once they germinated I moved them into a stonewool cube to root and grow before transplanting them into the system. My question is where do I position the cube when it's all said and ready? Does it touch the bottom of the net pot? Does it sit on a small layer of hydroton? Does it stay near the top? What about filling around it with hydroton? I know that hydroton absorbs moisture but I want to make sure I place the stonewool cube in the proper location.