I am currently in week 4 day 3. Mh is 1000 watt on 75%. Ph is 6.0 temp is 75 and rh is 45. strain is northern lights and LSD. I wanted to know when should I think about topping them? I also wanted to do low stress training with them and wanted to know how I should go about that and when to start. As soon as they are big enough I want to take some clones. How long should i wait before taking my cuttings? Any advice is appreciated.