rusty spots on my plants ? help

canadian blazer

canadian blazer

Well-Known Member
so today i checked in on my grow and noticed some leaves turing a rusty colour from inside of the fan leaves on my zkittlez glue plants. im not sure whats wrong. im growing in a 4x4 tent with 600w light. my lights on temp is 76°f and humidity is 40% i run a 100L resivoir with tap water (101 ppm) my nutes are GH i mixed 90ml of calmag 33ml of micro 33ml of grow and 20ml of bloom i also added 2 ml of superthrive and i have a bluelab ph doser thats set to 6.1ph medium is canna coco in 2gal smart pots. any help would be much appreciated.
 

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If it's LED you can up the temps to the 80's. Seems to help with up take of cal/mag.
Higher humidity during veg. 50/60%
 
Jypsy Dog said:
I'd start doing a folier feed with calmag and add Epsom @ 1 teas/gal in your feed. Some girls are pigs for the Mg. Most of mine are.
Click to expand...

thanks ! i thought it was an Mg excess i was gona back it off but my stems were still purple so i knew it needed more and then the spots started showing up so i was a bit confused. thanks again. ill be sure to get some epsome salt.
 
canadian blazer said:
so today i checked in on my grow and noticed some leaves turing a rusty colour from inside of the fan leaves on my zkittlez glue plants. im not sure whats wrong. im growing in a 4x4 tent with 600w light. my lights on temp is 76°f and humidity is 40% i run a 100L resivoir with tap water (101 ppm) my nutes are GH i mixed 90ml of calmag 33ml of micro 33ml of grow and 20ml of bloom i also added 2 ml of superthrive and i have a bluelab ph doser thats set to 6.1ph medium is canna coco in 2gal smart pots. any help would be much appreciated.
Click to expand...
Have you resolved this issue? I suspect a multi micro-nutrient issue.
Assuming this is GH Flora Series and you are using the correct Cal-mag (GH Cali-Magic) I would be interested in your feedback if you would try this mix on 100L res
Cali-magic 66ml Grow 53ml Micro 158ml Boom 211ml

Also, how frequently are you watering? Coco seems to be a real twat if it is not receiving irrigation to runoff at least once per day :peace:
 
canadian blazer said:
so today i checked in on my grow and noticed some leaves turing a rusty colour from inside of the fan leaves on my zkittlez glue plants. im not sure whats wrong. im growing in a 4x4 tent with 600w light. my lights on temp is 76°f and humidity is 40% i run a 100L resivoir with tap water (101 ppm) my nutes are GH i mixed 90ml of calmag 33ml of micro 33ml of grow and 20ml of bloom i also added 2 ml of superthrive and i have a bluelab ph doser thats set to 6.1ph medium is canna coco in 2gal smart pots. any help would be much appreciated.
Click to expand...
since you have the flora series, you should give H3AD"s formula a try for coco. 6mL micro/9mL bloom + 1g/gal Epsom salts. It's a variation of the Lucas formula specificallly for Coco.
 
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