Hi gang,

I apologize right away for not providing pics, I know they speak a thousand words. I'll try to be as descriptive as possible though. here's the TS form first...

H=Answer if you grow hydro or aero Aerospring
R=Answer if you grow in RockWoolSmall cubes
T=Answer if you grow in HydroTonyes


E-indoor or outdoorindoor
E-Water sourcetap water @ 200ppm @ 500x conversion
E-Source water pH6.8 adjusted to 5.8
E-Age of plant2 plants, 5th week in flower
E-Type of fertilizerGH lucas formula
E-Rate of application (if hydro, this is your PPM number, preferably after each component is added)1100 ppm @ 700 x conversion
E-Lighting source and distance from plantHPS 1000W @ 12 inches
E-Air temperature (both day and night if you are running a dark period)75 day 65 night
HD-Reservoir temperature65 constant
E-Air % Relative humidityaround 30
E-Lighting schedule12/12
E-Type of ventilation your room has6" vortex exhaust w/ passive intake
TR-Did you pre-soak your media in pH corrected solution?yes

I've got 2 plants, about 2-2.5 feet tall each, and they are both exhibiting brown spots on virtually every leaf, both new and old. the leaves themselves look healthy otherwise; dark green, no curling, no damaged tips. except that they all have very dark brown spots located all over the leaves, and each dark spot (about 1-2 mm wide) is surrounded by a yellowish color (about 2-4 mm wide). i've read countless threads but can't seem to target the problem. some of the larger fan leaves are yellowing slightly, but i've read this is the norm for plants 5 weeks into flower. the only additive i use other than the GH flora micro and bloom are very small dosages of grow and 1/4 tsp of koolbloom/gallon of water, as well as .5 ml/litre of AN JumpStart (seaweed extract). one last thing, these brown spots have been around for many weeks, but in the last couple weeks it seems to have spread to the entire plants. Thanks for taking the time to read this, i look forward to your advice. bye.
macnasty Reviewed by macnasty on . Brown Spots Hi gang, I apologize right away for not providing pics, I know they speak a thousand words. I'll try to be as descriptive as possible though. here's the TS form first... H=Answer if you grow hydro or aero Aerospring R=Answer if you grow in RockWoolSmall cubes T=Answer if you grow in HydroTonyes E-indoor or outdoorindoor Rating: 5