Black mamba is doing well. It's showing flowers. Automatic watering is very useful at this stage. It uses 0.6-0.8 liters per day. Watering every two hours for 10 seconds. I installed a 6 mm silicone tube directly under the trunk. I'll order 15-liter canisters; a 5-liter container lasts a couple of days. The hydromamba also looks good. I wonder if it will catch up with the second, undamaged coconut mamba. The roots are white and growing. Even at +28°C, the pH of the solution remains steady at 5.7-6.0—this is encouraging; the roots are healthy. DWC turned out to be the most practical option in the summer—no need for automatic watering pumps. A pump for collecting water samples in a liter bottle is needed for a week or two. Later, the fertilizer dosages (ml per 15-liter bucket) will become clear, and you can add a little enzymes and a little root stimulator once a week. I add the other additives once a week—when I mix up the solution. I completely change 15 liters of the solution every two to four weeks. The solution is clean, free of decaying roots and other organic debris. I topped the first mamba twice; it has three main crowns. And the trunk wriggles like a snake :) I trained it, slowing its growth. There was no growbox to put it.