GG4 - Mainling

So, new light landed, installed in situ and it has taken me a few days to figure out and adjust my temp/RH control for my grow space. The first thing I decided was to flip the 12/12 light schedule to night, i.e. lights on at 12.00am and lights off at 12 pm. We have suffered a good dose of cold and wet weather lately and the nights have been getting down to 54f. By running the lighting at night it helped to negate the cold drop without supplementary heating. I also reduced the airflow on the extractor fan to help keep some of the heat in the growspace for longer. My dehumidifier kept things at at a peachy 47 - 53 RH as well as being a supplementary source of heat. Growing on a shoestring 🙂 This did help me discover something that GG4 does not like (despite bending, twisting, topping, etc) and that is cold. Her leaves looked a little sorry for themselves but perked up as the temp rose. The environment is now more stable and I have tweaked lighting routines, dehumifier settings and RH controller settings to keep things a bit more consistent at 79/80f lights on and 68f lights off. That said, I will still be scrutinising and adjusting the Temp/RH/Day/Night environment for several weeks. Nutrient wise, I have not yet started with the bloom/flower supplements and will wait until around the end of week 2 into flower before starting. Gave a good organic nitrogen and Cal/Mag feed and two PH'd water feeds in the week that I flipped to leave a reasonable charge of nitrogen in the soil for the initial stages of flower, when nitrogen is still necessary albeit in reduced amouts to the veg phase. I have stopped the bio-silicon and will adjust my PH range to 6.6 - 6.8, going forward, this is the best range suited for Phosphorus and Potassium uptake. It is worth knowing that Phosphorus in particular, cannot be absorbed as well at PH's under 6.6. Will do a little more LST to even out the canopy and a little defoliation of 'larf' bud sites lower down but I am going to leave the leaves as far as possible, alone. I have always defoliated around the bottom third of my previous plants, however, there is plenty of current thinking from clever folk with PHd's in plant biology that say do not touch those photosynthetic power panels (leaves), so I thought I would give it a try. There are plenty of sages on this forum who would also advise the same. So that is about two thirds through week one of flower, pretty busy few days, though I still need to clean my growspace up following my recent autoflower harvest. The pictures are from shortly after lights on.