Another blessed week with vigorous and accelerated growth. Its stem is now 5mm thick. I've been adding Potassium Silicate in some waterings, I believe this is giving it the strength.
The ppm is now approaching 1000, and I always keep the pH at 5.8.
I applied the Topping pruning at the 3rd node, and as soon as the side branches grow, I'll do LST (Low-Stress Training). I'll also perform the first defoliation soon.