kallaserves
- 15
- 13
Hey all, been growing NFT low pressure aero for 2 year and plants grew big and strong without any issue.
Problem started to happen 6 months ago where the rooted clones would become unhealthy and roots end up turning brown and dying. You can see strands forming between roots and eventually they form cotton like structures on the roots. At this point they no longer take in nutrients and the ph will stay the same or might even go down(normally ec goes down and ph goes up)
Since then, I've had to toss out many harvests due to the same issue. Can't get any plants to uptake nutes and grow. I use the same ro 6g megacrop/gal formula as before; even tried Jacks321 to make sure that it's not the megacrop.
On my last run, I decided to switch up and do it in rockwool with jacks321. They seem to be a little better in rockwool. The roots could either be healthy or brown. For the plants with healthy white roots, upstairs still look stressed.
I'm 99% the same thing that's affecting the previous nft grows is also affecting the rockwool grow. I did bring a friend's cloner into the veg room but that's cleaned well. I also started to use Sounther Ag fungicide (concentrated hydroguard) 1ml/50gal around the time that the issues was popping up. Perhaps one of these 2 factors brought in cyanobacteria or fusarium, I'm not entirely sure if it's a pathogen or one of my other variables is off.
Lights - Samsung Led Strips 150-350 ppfd (veg) 22' away
Day Temp/Humidity - 80F/68%
Night Temp/Humidity - 73F/73%
RO filter - .05EC 7.0ph
Some solutions I tried to apply but no avail
Heisenberg's tea and no effect
Switch to Jacks321 from megacrop
Try some plants under 600 hps (200-400 ppfd, 3ft away)
I'm all out of ideas and am about to throw in the towel. Maybe you guys can point me in the right direction.
Problem started to happen 6 months ago where the rooted clones would become unhealthy and roots end up turning brown and dying. You can see strands forming between roots and eventually they form cotton like structures on the roots. At this point they no longer take in nutrients and the ph will stay the same or might even go down(normally ec goes down and ph goes up)
Since then, I've had to toss out many harvests due to the same issue. Can't get any plants to uptake nutes and grow. I use the same ro 6g megacrop/gal formula as before; even tried Jacks321 to make sure that it's not the megacrop.
On my last run, I decided to switch up and do it in rockwool with jacks321. They seem to be a little better in rockwool. The roots could either be healthy or brown. For the plants with healthy white roots, upstairs still look stressed.
I'm 99% the same thing that's affecting the previous nft grows is also affecting the rockwool grow. I did bring a friend's cloner into the veg room but that's cleaned well. I also started to use Sounther Ag fungicide (concentrated hydroguard) 1ml/50gal around the time that the issues was popping up. Perhaps one of these 2 factors brought in cyanobacteria or fusarium, I'm not entirely sure if it's a pathogen or one of my other variables is off.
Lights - Samsung Led Strips 150-350 ppfd (veg) 22' away
Day Temp/Humidity - 80F/68%
Night Temp/Humidity - 73F/73%
RO filter - .05EC 7.0ph
Some solutions I tried to apply but no avail
Heisenberg's tea and no effect
Switch to Jacks321 from megacrop
Try some plants under 600 hps (200-400 ppfd, 3ft away)
I'm all out of ideas and am about to throw in the towel. Maybe you guys can point me in the right direction.