Any input on how to set up VPD while using a UVA 30 watt suppliment light? It is on for 3hrs in middle of 8 hr light cycle.
I set up my offeset with it on. I will recheck with UVA30 off. My offeset will probably go from a neg 2.5 (-2.5) to a zero. Thinking set offset to a one (1)???
4 x 4 tent, HLG 550 R Spec/ HLG UVA30 / running CO2 @1500ppm avg