Hello! I am currently running 2 grow tents at the moment: one RDWC System with Chiller (water temperature: 19-20ºC): and one DWC Bubbler System (water temperature: 27-28ºC): The interesting is that the bubblers actually have a better root system so far: RDWC System with Chiller: DWC Bubbler System: Both tents have the same ambient temperatures (they are in the same room), have the same nutrient feeding, same strain, same water level (distance from netpot) and same light. They also have the same air pump but the RDWC system should have more oxygenation in the water. The only variables I see in both systems is water volume, temperature, and oxygenation. Everything else is basically the same. Why is the bubbler (apparently) winning?