Triffen, Meanwhile #Kratky #hydroponics happened. I use the most DIY system possible: bottles, 3d printed inserts that allow refilling, and where I didn't use inserts, there are pieces of disposable straw.
Growing on South side open balcony in 30+C is quite different from grow lights inside they use in the videos. Those plants drink a lot, and some liquid evaporates, so I need to refill a lot and designed and printed a tiny funnel to fit the straw (not pictured). #3dPrinting