Kush&Cookies Organic Living Soil, Mars Fce 6500

[gazmufc]

GSC 8 weeks

 

[gazmufc]

I've been trying to get to grips now with getting my lighting diled in. All I can use is app for measuring ppm. I know it's now gonna be 100% accurate. I've got my mars hydro 6500e at 45%, and getting reading of 260, does that seem a little high? How often now is good to be changing my light intensity? Thanks in advance guys..