I noticed these spots on my leaves today, it must have developed in the last 24 hrs. I actually had this same problem on my last grow and it seemed to go away once I started using flowering nutes but I am nowhere near inducing flowering yet. The only thing I have been feeding it is Neptunes Harvest (2-3-1) every second or third watering. The strain is nirvana northern light. Lighting is 1 90 watt led + 2x42 watt cfl for some side lighting. Temperature is usually around 76 degrees. Soil is country cottage with around 20% perlite. I'd like to nip this problem in the butt before it gets worse so any advice is much appreciated.
rossee Reviewed by rossee on . Does this look like calcium deficiency or maybe boron deficiency? Pics. I noticed these spots on my leaves today, it must have developed in the last 24 hrs. I actually had this same problem on my last grow and it seemed to go away once I started using flowering nutes but I am nowhere near inducing flowering yet. The only thing I have been feeding it is Neptunes Harvest (2-3-1) every second or third watering. The strain is nirvana northern light. Lighting is 1 90 watt led + 2x42 watt cfl for some side lighting. Temperature is usually around 76 degrees. Soil is Rating: 5