I'm trying to figure out what might be wrong with my seedling. I'm thinking either nutrient burn or nitrogen toxicity from what I've been reading but since this is my first grow I don't know and would appreciate help diagnosing the problem. One of my plants is starting to yellow on the tips of her first true leaves. She is two weeks from when her germinated seed was put in soil. I originally had put her in miracle grow because I'm new at this and thought it would be great but was told that Miracle-Gro is terrible for marijuana and that I should transplant her into foxfarm ocean Forest and that that would be the best soil for its whole life. Now I'm finding out that it is a hot soil and not good for seedlings. She growing in a Solo Cup. The humidity is currently around 30%, I am looking into buying a humidifier to raise the humidity. The temperature in my grow box is around 78 to 85 °F depending on if the lights are on or off and is lined with aluminum soil for reflection. I am using 8 daylight 23 watt CFL lights for 3 seedlings. I have bought a soil tester to test the ph, N, P, & K and also have a pH water tester coming in the mail tomorrow along with ph up and pH Down. The pH is 7.5 ( I know that is too high and I will be lowering it when I get the PH down in the mail tomorrow), the N was in the high category, the P was in the very low category, and they K was in the low category. I do have 1 oscillating fan above them blowing air down and a vent in the back of the grow box to get rid of old air. I started out using tap water that was left out for 24 hours and then switched to distilled water and have been using that for about a week. For the first few days I was watering everyday but then got told they were being watered too much so now have been watering every 3 to 5 days just depending on the soil. I have not given the seedling any extra nutrients and what is already in the soil. The light cycle I have been using is 18 on and 6 off. Below are pictures of her. If I left out any other details needed please let me know and I will be happy to answer them.
These are pictures taken today:
And this are pictures taken yesterday:
(only a little yellow on one leaf)
And this one was taken the day before:
(no yellowing yet)
Before the yellowing start for a couple of days a had a slight problem with her first true leaves drooping when she would be taken off the light..
(this is when her leaves were drooping)
I also have some happy frog soil that I bought today. Trying to decide if I should transplant her into happy frog since its better for seedlings or if transplanting again so young would be more hurtful then it would be helpful.. Anyone have any ideas what might be the problem with her leaves? and if I should transplant her or just keep her in ffof and ph the water tomorrow? Thank you for any help in advance!
These are pictures taken today:
And this are pictures taken yesterday:
(only a little yellow on one leaf)And this one was taken the day before:
(no yellowing yet)Before the yellowing start for a couple of days a had a slight problem with her first true leaves drooping when she would be taken off the light..
(this is when her leaves were drooping)I also have some happy frog soil that I bought today. Trying to decide if I should transplant her into happy frog since its better for seedlings or if transplanting again so young would be more hurtful then it would be helpful.. Anyone have any ideas what might be the problem with her leaves? and if I should transplant her or just keep her in ffof and ph the water tomorrow? Thank you for any help in advance!
for a few days and allow the leaves to regenerate then carefully apply your PH nutrient solution. Remember to add your specific amount of nutrientS to your water give it a good mix then do your ph. Also M G is bad for our babies! I think within 4-7 days she will flourish.
