This week not much was done, I've been away half the time. Leaves have developed some serious rust spots at some places, worst looking ones being the upper fan leaves in the tallest cola. Calcium deficiency perhaps? Instead of trying to increase calmag agent (6-0-0) which would add even more nitrogen, I'm planning to cut it all together and just add higher concentration of aqua flores and see if the plant gets enough calcium and magnesium from it. I also introduced a low amount of Atami Rokzbastic which could cause some disturbance in calcium uptake but I doubt it with such small amount. When I looked at my previous diary with Gorilla Z, i had similar rust spots issues developing at this point. I kept feeding more calmag agent and symptoms didn't get that bad, but the plant also stayed quite dark green until the end. Let's try something different. Other than that, the plant seems to be bulking up nicely, I've tried to bring the vpd up slowly and do some leaf removal to keep air flowing. I'll give another go with 100% light and see if I can get the environment under control, I'd really like to get some more photons hit the sides and deeper into the canopy. I'll also use plant ties to open up the canopy slightly, hopefully not snapping any branches this time around!