Hi guys, a big thanks to those who will read and answer me! 
I just started a micro-grow in a 4x4x7 tent and a LED Mars Hydro 900. I only want 4-5 plant and after some reading, I choose Coco-coir a the medium.
I have experience in growing in late 90', but in that time I only use clones in hydroponic system.
The strange fact is that I never fail in the past, and right now I have better strain/equipment/knowledge and its look like I'm gonna fail for the second time in a row. I do a lot of study/reading before buying my stuff to make sure that I bough only the best quality/price on market, from equipment to seed.
So basically I have a Sun blaster T5H0 and a dome for sprout/seedling, a Hanna PH/temp pen that I check/calibrate every time I use it, and I always use tap water that stand for 24h. I bough all the Canna product line for coco, some PH+, PH-, and a bottle of "Thrive" (b1) to relieve the shock of a transplant. I buy branded Canna coco-coir, that I use pure, without perlite. Inside my tent I have a combo carbon filter/inline 4 inches duct fan 200 cfm. Temp in tent when LED is on is about 23-24 and humidity around 40%.
And there is my story :
At my first try, I use the paper towel to germinate , it's the official germination method of Crop King and my 5 seed easily germinate. As suggested almost everywhere about auto-seed, I plant them directly in their final 3 gallon pot in coco coir under my Mars Hydro LED. After a few days appear the first leaves, and everything looks perfect. But after 2 weeks plants start to yellow more an more and seems to stop growing. Couple days after, it became clear that they will probably not survive, and with the clock always ticking with automatic plant, even survivor will became at best dwarf plant. I know you tough about overwatering, but I only water them once (after initial watering), and they started to became yellow before that. I decided to make my lesson and start back with new seed.
I quickly learned that I made a couple mistakes, that I could do it in a better way..I should start the seed in rockwool for example (never touch it after sprout is better) and put it in a closed dome 18h/day under a T5 fluo with high humidity for a couple days. Open the dome gradually to finish without dome after 7-10 days, and transplant in a small pot when you see roots in the bottom of rockwool. Am I right?
Because that is exactly what I've done on my second try. And you know what? The same thing happens at the same stage. I use rockwoll cube that I soak in a 5.5 PH water for 24h, place seeds in, put it under a dome (no water in the bottom, only rockwool is humid). Seed sprouted after less than 48 hours and everything looks perfect. I transplant them after about 12 days in a pot of the size of a party glass. I add a tiny dose of Thrive B1 1ml/liter (3ml/liter standard dose) and Ph the water to 6.0.
I keep them under the T5 to make sure that they will not get any more stress. The first 3 days they look happy, they grow, they are heavy green color. And slowly, they start to turn yellow, leaf are turned down and seems to stop growing. I put them under the LED in my tent, thinking they need more light, but the problem continue. Right now they are still alive, but I loose precious time and I doubt that I will success.
At the same time I start chive and parsley in coco that I feed with the same water and they are awesome.
I am little depress right now, I lose almost 2 month and 120$ of seeds, never tough it could happen.
So what do you think about this??
Can it be genetic? Does auto seed are more difficult at seedling stage?
I am almost sure that my problem is not in coco, water, PH, light or overwater.
Did Adding perlite to make roots breath more could solve my problem?
Did 1m/L of thrive could cause that because the plants are too young?
Thanks
I just started a micro-grow in a 4x4x7 tent and a LED Mars Hydro 900. I only want 4-5 plant and after some reading, I choose Coco-coir a the medium.
I have experience in growing in late 90', but in that time I only use clones in hydroponic system.
The strange fact is that I never fail in the past, and right now I have better strain/equipment/knowledge and its look like I'm gonna fail for the second time in a row. I do a lot of study/reading before buying my stuff to make sure that I bough only the best quality/price on market, from equipment to seed.
So basically I have a Sun blaster T5H0 and a dome for sprout/seedling, a Hanna PH/temp pen that I check/calibrate every time I use it, and I always use tap water that stand for 24h. I bough all the Canna product line for coco, some PH+, PH-, and a bottle of "Thrive" (b1) to relieve the shock of a transplant. I buy branded Canna coco-coir, that I use pure, without perlite. Inside my tent I have a combo carbon filter/inline 4 inches duct fan 200 cfm. Temp in tent when LED is on is about 23-24 and humidity around 40%.
And there is my story :
At my first try, I use the paper towel to germinate , it's the official germination method of Crop King and my 5 seed easily germinate. As suggested almost everywhere about auto-seed, I plant them directly in their final 3 gallon pot in coco coir under my Mars Hydro LED. After a few days appear the first leaves, and everything looks perfect. But after 2 weeks plants start to yellow more an more and seems to stop growing. Couple days after, it became clear that they will probably not survive, and with the clock always ticking with automatic plant, even survivor will became at best dwarf plant. I know you tough about overwatering, but I only water them once (after initial watering), and they started to became yellow before that. I decided to make my lesson and start back with new seed.
I quickly learned that I made a couple mistakes, that I could do it in a better way..I should start the seed in rockwool for example (never touch it after sprout is better) and put it in a closed dome 18h/day under a T5 fluo with high humidity for a couple days. Open the dome gradually to finish without dome after 7-10 days, and transplant in a small pot when you see roots in the bottom of rockwool. Am I right?
Because that is exactly what I've done on my second try. And you know what? The same thing happens at the same stage. I use rockwoll cube that I soak in a 5.5 PH water for 24h, place seeds in, put it under a dome (no water in the bottom, only rockwool is humid). Seed sprouted after less than 48 hours and everything looks perfect. I transplant them after about 12 days in a pot of the size of a party glass. I add a tiny dose of Thrive B1 1ml/liter (3ml/liter standard dose) and Ph the water to 6.0.
I keep them under the T5 to make sure that they will not get any more stress. The first 3 days they look happy, they grow, they are heavy green color. And slowly, they start to turn yellow, leaf are turned down and seems to stop growing. I put them under the LED in my tent, thinking they need more light, but the problem continue. Right now they are still alive, but I loose precious time and I doubt that I will success.
At the same time I start chive and parsley in coco that I feed with the same water and they are awesome.
I am little depress right now, I lose almost 2 month and 120$ of seeds, never tough it could happen.
So what do you think about this??
Can it be genetic? Does auto seed are more difficult at seedling stage?
I am almost sure that my problem is not in coco, water, PH, light or overwater.
Did Adding perlite to make roots breath more could solve my problem?
Did 1m/L of thrive could cause that because the plants are too young?
