Oo S0uP oO
Active Member
SS, Root systems are incapable of utilizing oxygen in its gaseous form (What comes out of your air pumps).In hydroponics Air pumps are used to break the tension of the surface above making it more turbid, allowing the water without DO molecules to come in contact with the oxygen rich air, thus increasing DO percentages in your water culture OR mini res in HEMPY (pasive reservoirs also become oxygenated through the wicking action of nutrient delivery). The extra molecule of oxygen can only then be utilized by the root system. Your roots are not growing around the airstone cause they like it, and actually greater DO percentages can be achieved by simply waterfalling the reservoir mixture over and over into itself in DWC (Which is why Undercurrent can be run successfully with out the use of airstones at all). Final summation; I dont see great advantages to adding airstones to the bottom of a hempy reservoir (I tried ) BUT I dont want to inhibit your inquiring nature and wish you more succes than I found!~S0uP