dude, give more information. temperatures day and night, ph on your feed, EC on feed and run off water. plant looks stressed, need more info to help out
From our diary what I can gather is that you give a plant in week 4 in 5 L pot, 2 L of water every day...this might be way too much...only if you don't have a super mega extractor and fans all over the place. plant is overwatered I think. Increased the time you give water. Pot should feel empty in between watering. Top soil should be dry before watering. When watering, make sure you have some run off in the bottom try and also, the bottom will not sit in water after you feed.