Be gentle, it's my first time

Not much changes this week. Continued feeding 1l of water per pot each day during the scorching hot days. There were some rainy days at the end of last week which I didn't water the plants on. Yesterday (27/10/18) I mixed a couple drops of the below product with 1l of water and fed to each plant in the hopes of boosting their growth. https://www.builders.co.za/Garden-%26-Outdoor-Living/Garden/Fertilizers/Plant-Food/Nitrosol-K2673-%28200ml%29/p/000000000000036851 Growth wise, plants seem healthy for now, I will add more pictures next week when they don't look so underaged... as it is cannabis is illegal in most countries...