Noteicture of ailing leaves in member's photo section
I have two G-13 hybrids, presently approaching wk. 4. One of my females is doing quite nicely, with rich green leaves and fattening buds. The other, with the same exact growing conditions, down to the amount watered, is starting to shows signs of serious yellowing.
I was going to blame it on the unnoticed colder lights out temps, but given how the other plant is responding so well, I cannot say for sure that this is the problem. My grow medium for both plants is MG soilless with time release, and worm castings, at 3 cups for three gallon pots. Day temps are about 72-78, depending on the outside temps, lights out, a bit cold, is at about 58-62. I will open a heater vent to see if that rectifies the problem.
I am using some of my leftover Monkey Juice (made for coir substrates) flowering solutions A&B, at medium strength, as per instructions, at 6.3 pH. I have been watering with this solution every other watering. I water every couple of days, letting the soilless dry out the first several inches from the surface of the pot.
I was thinking that this could be a nutrient lock, maybe Nitrogen, so I added about a cup of worm castings as a topping.
Oh, yes, 400 watt HPS, which has decent penentration, but nothing spectacular, so maybe this yellowing could be lack of light penentration??
I have two G-13 hybrids, presently approaching wk. 4. One of my females is doing quite nicely, with rich green leaves and fattening buds. The other, with the same exact growing conditions, down to the amount watered, is starting to shows signs of serious yellowing.
I was going to blame it on the unnoticed colder lights out temps, but given how the other plant is responding so well, I cannot say for sure that this is the problem. My grow medium for both plants is MG soilless with time release, and worm castings, at 3 cups for three gallon pots. Day temps are about 72-78, depending on the outside temps, lights out, a bit cold, is at about 58-62. I will open a heater vent to see if that rectifies the problem.
I am using some of my leftover Monkey Juice (made for coir substrates) flowering solutions A&B, at medium strength, as per instructions, at 6.3 pH. I have been watering with this solution every other watering. I water every couple of days, letting the soilless dry out the first several inches from the surface of the pot.
I was thinking that this could be a nutrient lock, maybe Nitrogen, so I added about a cup of worm castings as a topping.
Oh, yes, 400 watt HPS, which has decent penentration, but nothing spectacular, so maybe this yellowing could be lack of light penentration??