Hello all, I’ll get straight to it.
ISSUE: Grey Roots (above water line only)
Setup:
-DWC 120L Coleman Cooler (filled with 30 gallons of RO water)
-3” net pots
-160L/min of air pumps. 3 active aqua pumps. With 8 air stones and 2 air discs.
-Bluelab Guardian PH, PPM, Temp
-TrolMaster Temp, Humidity, VPD
-12k BTU AC
-450cfm CanFan/filter exhaust
-5x5 Gorilla tent
-Growers Choice ROI720 LED Light
-Scrog net
Nutrients:
-Advanced Nutrients Sensi Grow A&B
-Bonticare Cal-Mag
-PH down & Up
- I added Roots Excel at 1/10 the recommended dosage.
Data:
Ambient Temperature: 75-78f
Relative Humidity: 30-50%
PPM: Currently 300ppm
PH: 5.6-6.2
Co2: 800ppms
History:
6 clones in 3” netpots in a 30 gallon res. Water level is 1-2” below the net pots.
Water temperature never goes above 69f
Foil tape was used to cover anywhere light could potentially leak.
At first everything was going smooth. While waiting for the roots to reach the water, the ph was rising daily and needed to be adjusted once every 24hours to keep it within 5.6-6.2.
2 of the 6 plants rooted within the first 2 days and took off like rockets. Nice green leaves, roots doubling in size daily. Only issue at this time was purple stems.
Also at this time, the ppm were not rising or falling, so I did not want to up the nutrients.
After a week all plants had rooted besides one. But I still was having to lower the PH daily. So I changed out the res, cleaning with h202 and refilled with slighted lower ppm of 150ppm consisting of Sensi grow A&B, and Calmag only.
By week 2 all the clones had rooted. The one that was behind still failed to grow. While most of the others were coming alone great.
The PH become stable by week 2, and the PPM began to drop. So I upped the PPMs to 300ppms.
I lowered the water level to about 2-4” below the net pots. However, I read that may not be needed and I noticed some browning above the water line.
So I raised back up the water level to about 1” below the netpots. I also added 1ml per gallon of h202
Water temp 65f
PPMs 300
PH 5.9
I come to check on them after 24 hours, and the roots are GREY. No brown or black, they are grey. They are also only discoloring above the water line.
The roots seem to have gone from a nice stringy white, to clumped up Grey. It’s not slimy, it’s actually hard to remove the grey matter. The roots have appeared to of surrounded this material.
What could this possibly be? I thought I had everything dialed in?
Plants also look to be suffering since the Grey roots. Wilted leaves, odd rust spots.
A few leaves initially died, and I thought that was due to the roots establishing themselves. But most of the roots look fully established now, and its seems to be getting worse rather than better.
Please help, let me know if you need any other info.
ISSUE: Grey Roots (above water line only)
Setup:
-DWC 120L Coleman Cooler (filled with 30 gallons of RO water)
-3” net pots
-160L/min of air pumps. 3 active aqua pumps. With 8 air stones and 2 air discs.
-Bluelab Guardian PH, PPM, Temp
-TrolMaster Temp, Humidity, VPD
-12k BTU AC
-450cfm CanFan/filter exhaust
-5x5 Gorilla tent
-Growers Choice ROI720 LED Light
-Scrog net
Nutrients:
-Advanced Nutrients Sensi Grow A&B
-Bonticare Cal-Mag
-PH down & Up
- I added Roots Excel at 1/10 the recommended dosage.
Data:
Ambient Temperature: 75-78f
Relative Humidity: 30-50%
PPM: Currently 300ppm
PH: 5.6-6.2
Co2: 800ppms
History:
6 clones in 3” netpots in a 30 gallon res. Water level is 1-2” below the net pots.
Water temperature never goes above 69f
Foil tape was used to cover anywhere light could potentially leak.
At first everything was going smooth. While waiting for the roots to reach the water, the ph was rising daily and needed to be adjusted once every 24hours to keep it within 5.6-6.2.
2 of the 6 plants rooted within the first 2 days and took off like rockets. Nice green leaves, roots doubling in size daily. Only issue at this time was purple stems.
Also at this time, the ppm were not rising or falling, so I did not want to up the nutrients.
After a week all plants had rooted besides one. But I still was having to lower the PH daily. So I changed out the res, cleaning with h202 and refilled with slighted lower ppm of 150ppm consisting of Sensi grow A&B, and Calmag only.
By week 2 all the clones had rooted. The one that was behind still failed to grow. While most of the others were coming alone great.
The PH become stable by week 2, and the PPM began to drop. So I upped the PPMs to 300ppms.
I lowered the water level to about 2-4” below the net pots. However, I read that may not be needed and I noticed some browning above the water line.
So I raised back up the water level to about 1” below the netpots. I also added 1ml per gallon of h202
Water temp 65f
PPMs 300
PH 5.9
I come to check on them after 24 hours, and the roots are GREY. No brown or black, they are grey. They are also only discoloring above the water line.
The roots seem to have gone from a nice stringy white, to clumped up Grey. It’s not slimy, it’s actually hard to remove the grey matter. The roots have appeared to of surrounded this material.
What could this possibly be? I thought I had everything dialed in?
Plants also look to be suffering since the Grey roots. Wilted leaves, odd rust spots.
A few leaves initially died, and I thought that was due to the roots establishing themselves. But most of the roots look fully established now, and its seems to be getting worse rather than better.
Please help, let me know if you need any other info.
