Did some defoliation this week. The OG Kush was extremely bushy and has very small internodes so I cut a little bit more there. Also it seems that the marks on the leaves are a phenomenon called variegation (thx @SpinnerGrow for the info). Hope that's not gonna be a problem in the future.
▌Growbox: Secret Jardin Hydro Shoot 80
▌Ventilation: Ventilution Mixed In-Line 145/187m³/h
▌Fan: Secret Jardin Monkey Fan 20W (oscillating)
▌Substrate: 50% BioBizz All-Mix & 50% Perlite (& BioTabs Starterbox)
▌Nutrients: BioTabs Starterbox & tapwater
▌Irrigation: AutoPot 4Pot System