I am a first time grower, growing 3 plants of Northern Lights. After 2 weeks, I am seeing yellow/brown tips, with some yellow brown spotting in the middle of a couple leaves. Also, I've noticed some of the leave tips are beginning to curl upwards...
Setup:
I am using a 10 gal tote, with 6 45W CFL lights. The lights have been set about 2-4" away (hand tested for heat)
Sequence of events:
- once all 3 seeds have sprouted, I added 1/4 tsp each of General Hydroponics FloraMicro, FloraBloom and FloraGro nutrients to 5 gal of water (recommended during seedling is 1/4 tsp/gal, so 1.25 tsp each nutrient)
- after 4 days I added another 1/4 tsp each nutrient
-5 days later I noticed the tips turning yellow. I replaced the water and went back to only 1 tsp of each nutrient. (now at 14 days since planting the seeds)
- The next day, I noticed some yellow/brown spots in the middle of the leaves, and some curling upward on a couple leaves.
I believe I was too quick to add more nutrients, but I am concerned about the spots in the middle and the curling upward of the leaves. pH range has been maintained at 5.5-6.5. Temperature stays around 70-80F
Can someone please share some advice on what this could be/how to move forward?
Are these leaves "dead", meaning they won't produce or contribute to buds?
Thanks for the help!
Mike
Setup:
I am using a 10 gal tote, with 6 45W CFL lights. The lights have been set about 2-4" away (hand tested for heat)
Sequence of events:
- once all 3 seeds have sprouted, I added 1/4 tsp each of General Hydroponics FloraMicro, FloraBloom and FloraGro nutrients to 5 gal of water (recommended during seedling is 1/4 tsp/gal, so 1.25 tsp each nutrient)
- after 4 days I added another 1/4 tsp each nutrient
-5 days later I noticed the tips turning yellow. I replaced the water and went back to only 1 tsp of each nutrient. (now at 14 days since planting the seeds)
- The next day, I noticed some yellow/brown spots in the middle of the leaves, and some curling upward on a couple leaves.
I believe I was too quick to add more nutrients, but I am concerned about the spots in the middle and the curling upward of the leaves. pH range has been maintained at 5.5-6.5. Temperature stays around 70-80F
Can someone please share some advice on what this could be/how to move forward?
Are these leaves "dead", meaning they won't produce or contribute to buds?
Thanks for the help!
Mike
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