CamaradaHAZE

@CamaradaHAZE, The small pipes to ensure optimal root aeration. As for the ring, it refers to a horticultural technique called girdling, which is used primarily to enhance the fruit quality of various tree and vine species

Hi Chamomile :) What are those little pipes coming out of the substrate? What about the ring on the plant stem? I love microgrows!!!!