Haze Berry Automatic / micro grow

The Plant is growing super fast, I haven't seen any problems 😎😎, I add Nutrient and water only 3 times for the week. The humidity ranges from 50% to 65%. I check the PH with the tool that I show in the photo, I calibrate it for only 2 weeks with a precise solution. I keep the fan inside at the grow box in turn on all day, for the continued air recirculation. I started the LST.