drgonzo2k2
- 5
- 3
Long time lurker, first time poster...
TL;DR - Everything was going fine with my grow room until we were evacuated due to a forrest fire. While our home received no damage, any attempt at using my grow room since returning has killed 3 different batches of commercial clones within 48 hours, and I can't find the culprit.
First a bit of background. I've been a novice indoor grower for ~18 months now, successfully harvesting around a pound per grow for all 4 of my grows. My grow setup is as follows:
So I cleaned everything up, removed the carbon fiber filter since I really don't need it (it just came with the setup, so I set it up, but I'm not really concerned about the smell where I live), and went and got 4 clones from the local dispensary and 3 new bags of soil (and used a 4th one I had on hand). 48 hours later they were all dead. I'd done everything exactly as I'd done before. They looked fine after planting, but before long they turned from bright green to a very dull/faded green, then yellow, then wilted and died.
I checked out all the equipment to make sure things were all working, and when they were, I assumed I'd just received some bad clones (there's a super high demand for them here now due to all the crop losses from the fire so I thought maybe they'd been rushed or not treated properly), and thought I'd try again. 4 new clones of a different strain, and... dead within 48 hours with the same pattern of deterioration.
So at this point I got serious, and I really checked everything out, at which point I found a slight amount of residue on the intake ducting, and I thought it must have been problems with the air quality due to the smoke intake, so I replaced all of the ducting with the exception of a 2' segment which I cleaned extremely thoroughly, took apart the intake fan to the extent possible and also cleaned it thoroughly, and gave the walls, circulation fans, and anything else inside the tent a very thorough cleaning. Then I tried again with yet another strain of clones, and the exact same thing is happening again. I planted them two days ago, and now 2 of them are already gone with the other 2 on the way.
Assuming that cleaning might just not be enough and that my air quality was still the problem, I moved my PurpleAir sensor inside my tent and monitored the air quality for quite some time, and it was always at extremely good quality.
So now I'm stumped and looking for advice on how to proceed. None of our other houseplants, etc. are having any issues, so I assume it's not a water problem as they are all getting the same water (and these clones only received a little with no nutrients added). I'm testing to see whether the CO2 sensor has been damaged and might be causing issues, but readings at normal levels seem fine (450-480), so I'm not hopeful.
Any suggestions? It's extremely frustrating given the last grow was all lost, and I really just want to get back to growing. Thanks for reading!
TL;DR - Everything was going fine with my grow room until we were evacuated due to a forrest fire. While our home received no damage, any attempt at using my grow room since returning has killed 3 different batches of commercial clones within 48 hours, and I can't find the culprit.
First a bit of background. I've been a novice indoor grower for ~18 months now, successfully harvesting around a pound per grow for all 4 of my grows. My grow setup is as follows:
- Standard 4x4 grow tent located in a secure outbuilding on our property
- MarsHydro LED light on standard outlet timer
- Saturn Titan 6 controller driving the rest of the system
- Intake is 6" in-line fan vented through rough of outbuilding and coming into the bottom of the tent
- Exhaust is 6" in-line fan vented through rough of outbuilding and exhausting out of the top of the tent with an inline carbon fiber filter
- These are both plugged into the cooling outlet from the controller
- Eva-Cool dehumidifier inside the tent
- Dehumidifier setting on controller is also set to power the exhaust system when dehumidification is needed
- CO2 enrichment is via controller on bottled CO2, set to 1250ppm
- Which is configured on the controller to not enable CO2 and exhaust at the same time
- I grow 4 plants at a time, each in 10 gallon smart pots, using FoxFarm Ocean Forrest as the medium
So I cleaned everything up, removed the carbon fiber filter since I really don't need it (it just came with the setup, so I set it up, but I'm not really concerned about the smell where I live), and went and got 4 clones from the local dispensary and 3 new bags of soil (and used a 4th one I had on hand). 48 hours later they were all dead. I'd done everything exactly as I'd done before. They looked fine after planting, but before long they turned from bright green to a very dull/faded green, then yellow, then wilted and died.
I checked out all the equipment to make sure things were all working, and when they were, I assumed I'd just received some bad clones (there's a super high demand for them here now due to all the crop losses from the fire so I thought maybe they'd been rushed or not treated properly), and thought I'd try again. 4 new clones of a different strain, and... dead within 48 hours with the same pattern of deterioration.
So at this point I got serious, and I really checked everything out, at which point I found a slight amount of residue on the intake ducting, and I thought it must have been problems with the air quality due to the smoke intake, so I replaced all of the ducting with the exception of a 2' segment which I cleaned extremely thoroughly, took apart the intake fan to the extent possible and also cleaned it thoroughly, and gave the walls, circulation fans, and anything else inside the tent a very thorough cleaning. Then I tried again with yet another strain of clones, and the exact same thing is happening again. I planted them two days ago, and now 2 of them are already gone with the other 2 on the way.
Assuming that cleaning might just not be enough and that my air quality was still the problem, I moved my PurpleAir sensor inside my tent and monitored the air quality for quite some time, and it was always at extremely good quality.
So now I'm stumped and looking for advice on how to proceed. None of our other houseplants, etc. are having any issues, so I assume it's not a water problem as they are all getting the same water (and these clones only received a little with no nutrients added). I'm testing to see whether the CO2 sensor has been damaged and might be causing issues, but readings at normal levels seem fine (450-480), so I'm not hopeful.
Any suggestions? It's extremely frustrating given the last grow was all lost, and I really just want to get back to growing. Thanks for reading!