Air stones are made for fish tanks, they solve a different problem in that application. There is no reasson to use an air stone, three years of bare tube, in both dwc and E & F buckets have proved that to me. The first year I kept using pond stones which are quite good in some of my units, and compaired results in both quality and yield. The bare tube produced slightly more, which I attribute to the kinesis factor of the large bubbles and waves, and also the air pumps deliver unrestricted air through the tube, no resistance.
If an air stone makes you happy, use em, but they give your roots no benefit. Or rather they gave my roots no benefit, which is all I can say is true.
H
If an air stone makes you happy, use em, but they give your roots no benefit. Or rather they gave my roots no benefit, which is all I can say is true.
H