Al, I'm sorry to bug again, but with knowledge comes great responsibility,lol.
My issue is that my plants are not holding on to their leafs, even though new growth looks perfect. All the bigger fan leafs start to yellow and die off.
I run a controlled environment with co2 injection. I do not vent during lights on, my co2 remains at 1500 -1700 during lights on. I obviously vent during lights off. A lot off guys vent 5 min. every 2 hours during lights on, is that necessary?
I had only one glitch with this grow, it was a ph issue during veg that caused a severe def. Aside from a root aphid infestion on the Bubba Kush when I got it from the dispensary. I thought that once it was corrected the plant would progress normal, am I wrong in assuming that? It appears almost like the plants are still deficient, but the new growth has a nice mid green color.
My roots look snow white on all 4 plants. I was concerned about the 2" layer of rock wool on the top causing rot due to water retension, but the roots look great.
I'm all but certain that the roots are not causing the problem.
I'm not even sure there is a problem anymore, could it be that they are eating their fan leafs do to rapid growth? (I'm only 17 days flower from first pistils)
It also appears that the Bubba Kush (dark green one) is not having any issues, which could mean that I am underfeeding the larger plants but my ec is off the chart already. Base nutes I'm running 1.2 EC I add Sweet, multi enzym and root excelerator and I'm up to 2.5 EC
I do not recerculate, Drip to waste! My drips are running fine I use Canna Substra and there has not been any cloging. My Ph in is 5.6 my ph out is about 5.8 and I'm watching it like a hawk since my earlier ph problems.
Do I need to run stronger nutes due to my environment?
Here are some pics and if you need to know how I got here the journal is in my sig line.
I'm sorry about all the questions, I know you are bussy but I am clueless as to what is going on and you are the guy with the experience.
BTW, I have started your h2o2 maintenance program today
Thanks Al!
Unity