My light is a Maxsisun 300 watt from amazon. The fox farm nutrients i am using are the grow big, big bloom and tiger bloom. Soil is Black Gold cactus mix. I have added Cali-magic 1-0-0 at 1tsp per gallon and it seems to have helped. I mix the Foxfarm trio i mentioned above at 1/2 tsp per gallon of each of the 3 bottles. I have noticed now that when i add the fox farm literally the next day i see leaves getting yellow with brown spots. Ph is between 6-7 Im using test strips so its not exact. I generally only feed once every 2 weeks.Let’s try figure out the yellow leave what is your medium and what are you feeding? What is ph and ppm of feed? Do you have cal mag? If I was to guess by just looking at the pic I’d say you need a little cal mag I know that’s everyones answer to everything but your stems are fairly purple and that happens to me sometimes in first week or two of flower and I usually just dose a lil cal mag. The purple won’t go away completely but it turns into purple stripes instead of completely purple.
That being said without knowing how much your feeding and how often your feeding i can’t just recommend to add something because it could be too much of something your already adding locking out other nutes. I saw u said ur using fox farm nutes and they are known to be strong.
I have that fan, works great. Just for that small a tent (I am in 2x4) I don't turn it up past it's lowest setting (I have passive intake) cuz with passive intake there is uh pretty hardcore negative pressure (tent is sucked in) and I think the really high CFM sucks moisture out very quickly. I could be wrong but I have to water my plants far more often that I did in the past.2x2 feet. I ended up buying the Vivosun 6" combo with a carbon filter and ducting. It came today. I plan on setting it up Saturday. Sorry for the late reply. Been super busy lately with work.
She looks a bit stressed. Also It looks like shes is in the middle of flowering. Just leave her alone for now. Also the yellowing is deficiency, feed her sumI topped her after the 5th node. I have pruned and defoliated what i felt wasnt going to make it to the top. I have also had to pull several leaves that turned yellow and had brownish spots/splotches. Any idea what that might be. This is day 15 of flower.