Quick One Auto - Royal Queen Seeds

Day 39. The unknown leaf damage doesn't seem to expand. I would guess it was a ph issue combined with low airflow in the tent, as the plants got very bushy and most likely were getting hot. Unfortunately some leaves are damaged but hopefully we are back on track now! Flowers don't seem to be growing very large but I assume it is still early for them to get big. There is loads of small pistil balls all over the plants, fingers crossed. Currently using half a cap all-purpose MiracleGro, 1ml Canna Mono phosphorus, 1ml Canna Mono potassium, 2ml TNC CalMag and Nortembio ph minus to adjust nutrient ph to 5.8 (values per litre of water). May seem like a random mix but it should provode all macro and micronutrients the plants need. The feed may seem a bit too strong but I assumed the compost should be depleted by now and there is no way for the plant to get nutrients from the soil. So far no sign of overfeeding so I will stick to this set of nutrients. Next week I will increase the amount of potassium. Day 42. End of another week. Had to get some cable ties to install the lamp even higher, managed to get another 10cm. The lamp was clearly burning one of the colas. The plants were supposed to grow up to a maximum of 60cm... All of them ended up reaching around 1m! The flowering seems to be going well, plenty of fluff balls all over the plants. Except for heat stress there is no sign of deficiencies or overfeeding and in my humble opinion the ladies look pretty good. Any comments welcome, the more the better! I am hoping to learn as much as I can from this experimental grow so please share your thoughts and tips!