I’m in week ten with this Runtz auto and as with almost every grow, I’m seeing these discolorations now that we are well into flowering. I don’t think it’s a fungus because it’s not remotely powdery nor does it have the other characteristics of that.
So, while I’m leaning toward cal, mag or sulphur deficiency, I’m not sure that’s it. I’ve been adding a touch of both Epsom and calmag with almost every watering and just recently upped their levels, which only made it worse. Specifics below along with my recent watering/feeding records. The plants are not overwatered as I’m gauging when to water on weight vs a referenced dry pot Thanks as always!
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Nutes are Jack's blossom booster, calmag and epsom salts.
Spider Farmer sf-2000 led 200 watt
Fox Farms Ocean forest soil
Temp range 67 dark, 80
light schedule 20 on, 4 off
Spring water ph 8.7 corrected to 6.5
TDS out of the tap is about 100
3 gallon air pots
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2/25
1/4 tsp epsom, 1/4 tsp 20/20/20, 1/4 tsp cal mag. Ph 6.3 tds 350. 3 gallons. Topped up soil. Soil nutrients seemed weak in some pots (two diff bags of fox farm ocean forest) resulting in weak pale foliage in some, but plants responding well to nutrients even at early stage.
3/1
1/4 tsp epsom, 1/4 tsp 10/30/20, 1/4 tsp cal mag. Ph 5.8 tds 530 3 gallons. Chased with one gallon pure water to lower ph. Avg ph should therefore be 6.5.
3/3
1/4 tsp epsom, 1/2 tsp 10/30/20, 1/4 tsp cal mag. Solution Ph 6.39 tds 723.
2 gallons across six plants
3/7
1/2 tsp epsom, 1/4 tsp 10/30/20, 2 tsp cal mag. Solution Ph 6.62 tds 765.
2 gallons. Seeing some rust spots…could be low sulphur cal or mag so upped these.
So, while I’m leaning toward cal, mag or sulphur deficiency, I’m not sure that’s it. I’ve been adding a touch of both Epsom and calmag with almost every watering and just recently upped their levels, which only made it worse. Specifics below along with my recent watering/feeding records. The plants are not overwatered as I’m gauging when to water on weight vs a referenced dry pot Thanks as always!
——————
Nutes are Jack's blossom booster, calmag and epsom salts.
Spider Farmer sf-2000 led 200 watt
Fox Farms Ocean forest soil
Temp range 67 dark, 80
light schedule 20 on, 4 off
Spring water ph 8.7 corrected to 6.5
TDS out of the tap is about 100
3 gallon air pots
————
2/25
1/4 tsp epsom, 1/4 tsp 20/20/20, 1/4 tsp cal mag. Ph 6.3 tds 350. 3 gallons. Topped up soil. Soil nutrients seemed weak in some pots (two diff bags of fox farm ocean forest) resulting in weak pale foliage in some, but plants responding well to nutrients even at early stage.
3/1
1/4 tsp epsom, 1/4 tsp 10/30/20, 1/4 tsp cal mag. Ph 5.8 tds 530 3 gallons. Chased with one gallon pure water to lower ph. Avg ph should therefore be 6.5.
3/3
1/4 tsp epsom, 1/2 tsp 10/30/20, 1/4 tsp cal mag. Solution Ph 6.39 tds 723.
2 gallons across six plants
3/7
1/2 tsp epsom, 1/4 tsp 10/30/20, 2 tsp cal mag. Solution Ph 6.62 tds 765.
2 gallons. Seeing some rust spots…could be low sulphur cal or mag so upped these.