Hi guys,
Got several issues plaguing plants in veg (half-way through the 18/6 cycle). The plants are in large pots, the medium is Sunshine #4 mix, watering with RO water.
The good:
- No drooping of leaves
- Temp (78 F) & humidity (~50%) all within proper range
- Vertical plant growth rate has been as expected
- Middle leaves seem to be fairly healthy (deep green)
The bad:
- Leaves curling on sides (signs of heat stress, which is weird because the lights are at 50% of 1000HPS and 4 feet above the plants)
- Upper leaves are pale green rather than rich green
- Lower leaves are yellow and dying off
- Medium stays wet for a LONG time, like 4-5 days easy (this is a major concern for me, worried about root rot or drowning the plants?)
The pics:
I think the pH might be a little low, and possibly a Calcium & Magnesium deficiency based on some pics I've seen.. but wanted some experienced growers' opinions as well. Thanks in advance!
Got several issues plaguing plants in veg (half-way through the 18/6 cycle). The plants are in large pots, the medium is Sunshine #4 mix, watering with RO water.
The good:
- No drooping of leaves
- Temp (78 F) & humidity (~50%) all within proper range
- Vertical plant growth rate has been as expected
- Middle leaves seem to be fairly healthy (deep green)
The bad:
- Leaves curling on sides (signs of heat stress, which is weird because the lights are at 50% of 1000HPS and 4 feet above the plants)
- Upper leaves are pale green rather than rich green
- Lower leaves are yellow and dying off
- Medium stays wet for a LONG time, like 4-5 days easy (this is a major concern for me, worried about root rot or drowning the plants?)
The pics:
I think the pH might be a little low, and possibly a Calcium & Magnesium deficiency based on some pics I've seen.. but wanted some experienced growers' opinions as well. Thanks in advance!