bc0430 said:
My husband didn't check the temp! Just panicked. We have always had an issue keeping humidity up, it's about 50%. We've been doing this a year and have never had this happen before. The last two yield were unimpressive but we sorted everything out this time and they were doing awesome. I can't believe this happened so quickly. The vortex fans are pushing the heat out of the room and we have oscillating fans in there to move the air around. We just put revive in/on them and checked the runoff. The PH was 6.0 so that's good but the PPM was at 1600! Alot of the fan leaves that have come back are yellow so I think chemical burn (especially with the amount of nutrients). And no, our lights are not enclosed. About 13-15 look not awful, but not amazing like before. Losing 23 would be horrific. I am REALLY praying this revive stuff works on them. At this rate with my anxiety level over this, I'm going to need the biggest yield I can get...
Your humidity being at 50% is OK, you want to "ideally" keep it around 45-60%. Having the lights uncovered in a grow space will generate a lot of heat(especially 6 1Khps lights) that is tricky to remove from a space. Given that you had one fan to fail overnight could have lent itself to your problem.
If you are in organic then PPM is irrelevent as it cannot be accurately measured. But it does sound like you may have overfed them. I am not sure why you flushed them. In organic growing, you shouldn't need to flush your plants unless you have somehow overdosed them on nutrients or gave them chemical nutrients.
I would highly recommend that you get either cooltubes or large vented, enclosed hoods for them bulbs so that you can more easily remove the heat that they generate. I would daisy chain no more than 3 1K lights together to one exaust fan then connect the other 3 lights to the other exaust fan, and allow them to pull air from the room through the lights and draw fresh air in passively.
Its nearly impossible to say for sure which ones will survive and which ones will die. It is most certainly a waiting game now. Your yield will definitely suffer from this and it will push back the harvest date. You can basically take the length of time starting with seeing the first day of damage until they start back growing either bud or new leaf sets, and add that to the end of the grow. So if it takes a week for it to recover then you will have to add a week to the harvest date. But even then the yield will suffer and there's no way to know how much.
If this had happened during veg then it wouldn't have affected the yield as you would be able to veg it longer and get the plant back to where it should be. But once it has started blooming, the stage is set so to speak and any damage then will remove that much growth. It doesn't mean that the harvest will be wiped out, just that it will lose some according to the level of damage.
I wouldn't toss any of them out at this point as they are already there in flowering. You just have to wait and see, and don't get impatient and start trying different things to enhance the outcome as that will only make it worse more often than not. Once you know that you have a plant that is going to die way back and not have hardly any buds then you can pull those.
I hope this helps you
