Alright ladies and gents. I'm having a bit of an issue with my northern lights autos and was hoping one of you may be able to give me a hand. They are currently on day 43. The leaves on one of the plants (back right) seem permanently droopy and I'm not sure why. The other issue I'm facing is that I think two of the plants (back two) seem to have slowed down their growth a huge amount and I think they may be stunted - but not 100% sure. I'm using Mills A&B nutrients (2ml/l) and am watering them around a litre each every two days, or until the top of the soil is dusty. Occasionally I'll give them a break from the nutes and give them plain water for a feed. The nutrients compositions and other details are below. Temps have been a bit high over the past week with them reaching 30C pretty consistently during the hotest parts of the day.
So what do you think the issue is? Heat stress? Nutrient lockout? Over watering? Any help would be much appreciated.
3x Northern Lights autos from Sensi Seeds
Plant Magic Plus Soil
11L fabric pots
400w dual spectrum
digital adjustable ballast
0.8m x 0.8m tent
5" extractor fan
rhino filter - not yet installed
Mills A&B nutrients
Total Nitrogen (N): 3.5 % w/w
Potassium (K2O): 1.3 % w/w
Calcium (CaO): 5.1 % w/w
Iron (Fe): 0.042 % w/w
So what do you think the issue is? Heat stress? Nutrient lockout? Over watering? Any help would be much appreciated.
3x Northern Lights autos from Sensi Seeds
Plant Magic Plus Soil
11L fabric pots
400w dual spectrum
digital adjustable ballast
0.8m x 0.8m tent
5" extractor fan
rhino filter - not yet installed
Mills A&B nutrients
Total Nitrogen (N): 3.5 % w/w
Potassium (K2O): 1.3 % w/w
Calcium (CaO): 5.1 % w/w
Iron (Fe): 0.042 % w/w