Growing Medium: Soil
Growing Style: LST
Watering/Feeding Frequency: As needed, alternate one clean water, one advanced nutrients grow micro bloom
Nutrient Strength (PPM/EC): As per feeding chart
PH Levels: 7.0
Temperature/Humidity Levels: 16c - 24c
Air Flow/Fans etc.: Intake and exhaust
Lighting Type (CFL/HPS/MH etc.): Viparspectra P1000 LED
Growth Stage: Few weeks into flowering
Cannabis Strain: Fruit Slap (Europa Seeds) Feminised
I'm a few weeks into flowering and I am getting some rust coloured marks on leaf veins as well as some yellowing. Mostly older foliage. Up until now plant has been healthy. Some colouration of leaf tips too (purpling), associated with cold springtime temps at night.
My thoughts are it is a manganese deficiency cause my possible PH issues (being too high), but I'm not sure! Any help would be appreciated.