GrapeNut
Well-Known Member
Hello everyone.
Things seem to have started off well but I have encountered a problem.
Strain: Critical Kush (Barneys Farm)
Grow Method: DWC
Nutrients: AN Sensi Grow and Bloom
Lighting: PlatinumLed P300
Location: Grow Tent with Inline Exhaust fan and carbon scrubber
So I started out by germinating my seed using the towel method then placing it in vermiculite until she generated a root system and cotyledon appeared. After that I rinsed off the vermiculite placed her in a neoprene collar and into my simple DWC system (Rubbermaid tote with air stone). After a few days I noticed she was growing but leaves had a slight yellow color so i added 8mL of part A and B sensi Grow to around the 2-2.5 gallons of water in the tote (around 1/5 strength, at a recommended 16mL per gallon).
She was doing amazing, incredibly green and vigorous growth. At around the 4th node I decided to do a reservoir change and up the nutrient strength to 24 mL (around 3/5 strength). This is when bad things begin happening, within a few hours the lowest fan leaf set had curled up and became crispy to the touch. I became worried and immediately thought of nutrient burn so I diluted my reservoir by half (replaced half of its water with fresh tap water. I also checked the pH using pH strips which indicated pH in the high 6 range, so I added a little lime juice to drop it back down to around 5.5-5.8. The next day I noticed that the complete set of lowest fan leaves were totally dried out and crumbling, so I removed them with a sterile blade.
The next largest fan leaves seemed to begin drying out, so I rinsed off the roots and did a complete flush for 2 days under which time I noticed no significant change in the plants appearance.
As of two days ago I added nutrients back again at the original 1/5 strength and today (3 days later) the current lowest set of fan leaves have turned almost completely yellow and the newest growths are beginning to show browning on the tips. So at the moment I did another flush and she’s currently sitting in just plain tap water. What I have noticed is that she is rapidly growing new branch roots from the upper portion of the tap root and that the roots that are submerged are brown and seem very soft like wet string. The pH is around 6 at the moment and im not sure about what else to do. She is on a 24 hour light on cycle.
Root rot is an idea that came up, I have added 2 mL of of Dutch Master gold zone to the reservoir.
Things seem to have started off well but I have encountered a problem.
Strain: Critical Kush (Barneys Farm)
Grow Method: DWC
Nutrients: AN Sensi Grow and Bloom
Lighting: PlatinumLed P300
Location: Grow Tent with Inline Exhaust fan and carbon scrubber
So I started out by germinating my seed using the towel method then placing it in vermiculite until she generated a root system and cotyledon appeared. After that I rinsed off the vermiculite placed her in a neoprene collar and into my simple DWC system (Rubbermaid tote with air stone). After a few days I noticed she was growing but leaves had a slight yellow color so i added 8mL of part A and B sensi Grow to around the 2-2.5 gallons of water in the tote (around 1/5 strength, at a recommended 16mL per gallon).
She was doing amazing, incredibly green and vigorous growth. At around the 4th node I decided to do a reservoir change and up the nutrient strength to 24 mL (around 3/5 strength). This is when bad things begin happening, within a few hours the lowest fan leaf set had curled up and became crispy to the touch. I became worried and immediately thought of nutrient burn so I diluted my reservoir by half (replaced half of its water with fresh tap water. I also checked the pH using pH strips which indicated pH in the high 6 range, so I added a little lime juice to drop it back down to around 5.5-5.8. The next day I noticed that the complete set of lowest fan leaves were totally dried out and crumbling, so I removed them with a sterile blade.
The next largest fan leaves seemed to begin drying out, so I rinsed off the roots and did a complete flush for 2 days under which time I noticed no significant change in the plants appearance.
As of two days ago I added nutrients back again at the original 1/5 strength and today (3 days later) the current lowest set of fan leaves have turned almost completely yellow and the newest growths are beginning to show browning on the tips. So at the moment I did another flush and she’s currently sitting in just plain tap water. What I have noticed is that she is rapidly growing new branch roots from the upper portion of the tap root and that the roots that are submerged are brown and seem very soft like wet string. The pH is around 6 at the moment and im not sure about what else to do. She is on a 24 hour light on cycle.
Root rot is an idea that came up, I have added 2 mL of of Dutch Master gold zone to the reservoir.
