Northern Light - 2x600w Lumatek Zeus Pro

No yellowing , the light green is visible on new growths in general and the old leaf are darker , it’s the same with manny others plants in the nature , young leaves have « young green color » while they are getting older they are also getting darker. 24/0 is nothing to do with the color and I’ve never noticed a shock On the plants when I was switching from 18/6 to 24/0

Befre she'll get into full flowering she will have 2 weeks of crazy grow , they will at list twice taller at the end of that period so that moment is a sign that the plant will soon get into flowering. The 1st pistols will also be visibles during the stretch t show you that the plant will start the process

You will see the sex either when the plant will push some pistols during the stretch , either at the end of the stretch when she'll enter the full flowering process. Female have pistols ,male have pollen sacks and hermies have both , check a guide about how to recognize a female cannabis plant.

honestly, lst is difficult to get too early.. well, of course not when she doesn't have any real leaves yet, but i have started bending mine as early as 1 1/2 weeks in (best example my current white haze bonsai grow).. remember that if you wait too long the stem might be too thick already and it'll be difficult to shape her (unless you want to do supercropping, but i don't see this as an "lst")..

Приветствую, бро! По фото кажется перелом критический, думаю к этому моменту уже запущены процессы отмирания обломанной части, лучше стоит её удалить и растение восстановится в других местах. А в следующий раз постарайся два дня перед загибом не поливать растение в конце вторых суток, смело загибай, а при переломах можно накладывать шину медицинскую - несгибаемую палку к месту перелома, плотно примотать в двух местах - выше и ниже перелома, главное чтоб обломманные части плотно прилегали друг к другу и после перелома нельзя медлить, действовать нужно сразу, если хочешь спасти растение. 👌 У вас всё будет хорошо, она восстановится! 👍 Удачи, бро! 👋

Well, this fully depends on the light and the environment.. The best method would be to actually test the light intensity (PPFD) at the canopy (so what really hits the plant). To get them to flower you'd need at least around 400um/s.. Above 850um/s you'd want to add some extra CO2, so the plant can handle the light intensity properly. Looking at the light you have, that seems to be able to push out 1620 umol/s, so you depending on your environment you might not even want to turn it up all the way, as too much light can actually harm the plant as well.. Do you know the light-color of your LED? No need to buy an expensive apogee quantum meter, but Shane from Migro made a review video about a cheap 30-bucks Amazon par-meter and made a test, comparing it to his Apogee, and then provided a conversion factor for the various light-colors, so you can calculate the LUX to PPFD and save about 470 bucks (compared to the Apogee) ;)

From my personal experience, plants droop their leaves straight downwards to limit the amount of light exposure once a certain threshold is reached, ofcourse strain and genetic dependent. What you may be seeing is your plant getting a too high intensity of light and reaching a limit halfway through the day. You would be well aware if the problem was related to over-watering which is hard with a coco/perlite mix in an airpot. I use 20L airpots and a plant that size in warm conditions easily goes through at least 2L of fertigation per day. Distance your lights from the top of that plant by 5cm or more and note the effect within a few days - not much to lose with such an approach. Good luck.

read each plant individually.. bet you'll be an expert after 1 run, lol.... coco coir doesn't need much of a flush. 3-5 days is plenty. You only know if it is a clone or a lot of familiarity with that specific seed-line. So, autos are always a guesstimate. When it look fairly ripe, initially, it may have 7-10 days left. If trichomes look a long way off, but plant looks ripe, that's a generally good time to think about it. If you only get 2-3 days in coco, that's fine. Get a 30-60x cheapy scope or fancy usb digi microscope for your phone. it'll be handy to know when to harvest... in future remember how it progresses and all the variance you will see in your 18 plants. it'll be an easier guesstimate. impossibly to give precise instructions, unfortunately.