Baruce
New Member
Hi All,
I'm a newbie having problems with my first grow. I noticed today that about half my plants have a few leaves that look sickly. The leaves are curling upwards along the edges, and turning brown and thin looking. The plants have been looking light green / yellowish in parts, I was told that's normal growth, but these leaves are more yellowish, turning brown in areas where the thinning/curling happens.
I just flipped from 24/7 to 12/12 under a 600w HPS, soaking with Supernatural Brand Gro Aqua (17-7-18) in rockwool cubes. The Solution's pH is 6.0-6.3, and I just increased the PPM from about 350 to about 530, which is what I last soaked with 2 days ago before flipping to 12/12. The temperature range has been 63f-83f, with good ventilation.
Did I over-water them, or is this something else? Yesterday I noticed the cubes seemed very wet and heavy, so I didn't water them, and when the lights came on today I noticed the sickly leaves. The cubes still felt heavy, so I swapped a few dry towels under them, and now I don't know what to do.
If I did over-water them, how can I salvage these plants? If it's not over-watering, then what's the problem/solution?
Here's a couple pics. Any help or advice would be much appreciated.
I'm a newbie having problems with my first grow. I noticed today that about half my plants have a few leaves that look sickly. The leaves are curling upwards along the edges, and turning brown and thin looking. The plants have been looking light green / yellowish in parts, I was told that's normal growth, but these leaves are more yellowish, turning brown in areas where the thinning/curling happens.
I just flipped from 24/7 to 12/12 under a 600w HPS, soaking with Supernatural Brand Gro Aqua (17-7-18) in rockwool cubes. The Solution's pH is 6.0-6.3, and I just increased the PPM from about 350 to about 530, which is what I last soaked with 2 days ago before flipping to 12/12. The temperature range has been 63f-83f, with good ventilation.
Did I over-water them, or is this something else? Yesterday I noticed the cubes seemed very wet and heavy, so I didn't water them, and when the lights came on today I noticed the sickly leaves. The cubes still felt heavy, so I swapped a few dry towels under them, and now I don't know what to do.
If I did over-water them, how can I salvage these plants? If it's not over-watering, then what's the problem/solution?
Here's a couple pics. Any help or advice would be much appreciated.