I posted the same topic in "autopot" section ,but it is a small one.. If I am breaking rules, my apologies, I will delete the post in "watering systems" subforum.
Hi! Skip the first paragraphs if you dont wish to read my sorrow story
I would appreciate any input....
The hobby I hoped would be a stress reliever has been a stress generator and I am probably giving up after next grow.
I have tried EVERYTHING and honestly, at this point, I could be convinced that we live in a simulation and someone up there is laughing at my failures lol. Because 15/16 dead/impotent plants during last 12 months just seems ridiculous, when I have tried different soils, nutes, phs, ppms, and even different watering techniques and DLI schedules.I wont go too deep into details but my last 4 grows (each 4 plants) were failures (From 16 plants only 1 produced below average product). All had the same characteristics - deficiencies from day 20 that led to most fan leaves falling off by day 40 .. Flushing didnt help. Some plants finished, but the smoke was very very weak.
But - THAT IS THE PAST. I BOUGHT AN AUTOPOT and maybe this time the grow be be good? WRONG
Yellowing from TOP leaves and weird yellow patches on top leaves.
Setup:
47litr reservoir,1 plant, 15litre plastic pot, 100 % coco, no airdome, no airbase.
1 autoflower - SODK (mephisto) - 39 days old from seed
Mars ts 1000 + kingbrite 240w = total 390 watts
Tent: 5x5x7
Temps:25-27
Humidity: About 60%
DLI : 35-37 (was lower for seedlings and early veg)
FEEDING: Canna coco (a,b, cannazym,calmag) Tap water (300ppm) + RO water. 80% RO and 20% tapwater, making it 50ppm or 0.1 ec. Then I add 150 ppm CALMAG to get to 0.4ec of 200 ppm.
First 23 days handwater with 6ph and CANNA COCO "light nude schedule" (meant for autoflowers)
Day 23: 12 LITRES of 500 ppm 5.65ph reservoir fill
Day 23-day 30: Reservoir never went above 5.95ph and TRAY never weent above 6.1ph
day 30-day 37: 15 litres of 700 pm 5.7 ph water (Got LIGHT nute burn in tips)
day 37 - day xxx: 15 litres of 700 ppm (1.4ec) 5.7 water. Didnt increae EC due to nute burn last time.
Photos are from today - day 39. I noticed first yellowing/patches on day 35. It has gotten much worse since then. There were 4 patchy/yellow top leaves 4 days ago, now almost all of top canopy has weird discoloration.
My theory.
2) PH LOCKOUT
But why and how? If ph never went above 6.1 in tray
CONCLUSION: I will refill the reservoir tomorrow. I dont know what do do.
Any help appreciated.
Hi! Skip the first paragraphs if you dont wish to read my sorrow story

The hobby I hoped would be a stress reliever has been a stress generator and I am probably giving up after next grow.
I have tried EVERYTHING and honestly, at this point, I could be convinced that we live in a simulation and someone up there is laughing at my failures lol. Because 15/16 dead/impotent plants during last 12 months just seems ridiculous, when I have tried different soils, nutes, phs, ppms, and even different watering techniques and DLI schedules.I wont go too deep into details but my last 4 grows (each 4 plants) were failures (From 16 plants only 1 produced below average product). All had the same characteristics - deficiencies from day 20 that led to most fan leaves falling off by day 40 .. Flushing didnt help. Some plants finished, but the smoke was very very weak.
But - THAT IS THE PAST. I BOUGHT AN AUTOPOT and maybe this time the grow be be good? WRONG
Yellowing from TOP leaves and weird yellow patches on top leaves.
Setup:
47litr reservoir,1 plant, 15litre plastic pot, 100 % coco, no airdome, no airbase.
1 autoflower - SODK (mephisto) - 39 days old from seed
Mars ts 1000 + kingbrite 240w = total 390 watts
Tent: 5x5x7
Temps:25-27
Humidity: About 60%
DLI : 35-37 (was lower for seedlings and early veg)
FEEDING: Canna coco (a,b, cannazym,calmag) Tap water (300ppm) + RO water. 80% RO and 20% tapwater, making it 50ppm or 0.1 ec. Then I add 150 ppm CALMAG to get to 0.4ec of 200 ppm.
First 23 days handwater with 6ph and CANNA COCO "light nude schedule" (meant for autoflowers)
Day 23: 12 LITRES of 500 ppm 5.65ph reservoir fill
Day 23-day 30: Reservoir never went above 5.95ph and TRAY never weent above 6.1ph
day 30-day 37: 15 litres of 700 pm 5.7 ph water (Got LIGHT nute burn in tips)
day 37 - day xxx: 15 litres of 700 ppm (1.4ec) 5.7 water. Didnt increae EC due to nute burn last time.
Photos are from today - day 39. I noticed first yellowing/patches on day 35. It has gotten much worse since then. There were 4 patchy/yellow top leaves 4 days ago, now almost all of top canopy has weird discoloration.
My theory.
- Micronutrient deficiency (problems start from TOP) - zinc or iron.
why? Maybe because not enough zinc or iron in my 50 ppm solution. (80% ro + 20% tap) I dont think Canna coco has zinc or iron in their nutes.
2) PH LOCKOUT
But why and how? If ph never went above 6.1 in tray
CONCLUSION: I will refill the reservoir tomorrow. I dont know what do do.
Any help appreciated.
Last edited by a moderator: