Ok, this is getting fuckin' annoying.
You're telling me. If only I had a nickle for every time I told myself that I'm done with all of this, I'd be a millionaire.
Is the water you're using free of pathogens? Does it fizz when you add H2O2 to plain tapwater?
Well, when I first read about H2O2 I was kinda excited to see some fizzing action. I soon found out that the only fizzing I'd see is my skin when I got a bit on my thumb. Other than that, I have never seen any fizzing in my solns.
I think at this point, I'd drain & flush the system with 5.8 water with 10ml/L H2O2 (37.8ml/gal), allow runoff to drain to waste, don't recirculate it, mix a new tank of sauce spot on 5.8 and see what happens in 24h.
I didn't have time to drain to waste, but I did bombard my soln with H2O2. After 24h the pH went from 5.8 to 5.9 so that seems to be dealt with.
Shit, that's a problem. Max temp should be 26C (78.8F).
I don't recall offhand what sort of light you have, but 4" is too close for plants to survive anything but a 400 in a cooltube (and that's really too close, even for a 400 in a 'tube).
To combat any heat concerns, I have bumped up the cab's A/C so the temps @ the bottom of the plants are about 75C and the top of the plant is about 79C to 82C (depending on the time of day). The way that I made the cab, I have the A/C intake on the bottom next too my reservoir, which is then exhausted out the top. The problem is, to control the temps on the tops of my plants I need to crank up the A/C which in turns chills the fuck out of my res. What should the lowest temp of my soln be? I've read lots of stuff, from 15C to 20C to 76F to 86F. Right now my soln temp is about 15C, is that okay?
I'm using a 250w HPS in a SunLeaves reflector. I would love to drop my a bit, but my plants are quite tall now and my only opinion would be to move them out from directly beneath the lights to the periphery. That's exactly what I have been doing with Ms. B and the Runt.
It's really quite unlikely to be a deficiency caused by an actual lack of nutrient if you're using a well known brand of hydro nutes at an appropriate strength & pH, somewhere around 1400ppm @ 5.8.
Man, this whole project has taken up like 10x the amount of time, effort, and money that I originally expected. Is it normally this tough the first time around or is it just me?
If it's not nute deficiency WHAT IS THE PROBLEM?!?! I check my pH daily now so it's definitely not pH imbalance. I check nutes daily and it usually doesnt jump around too much. Can my nute meter be fucked? Do you calibrate TDS meters?!
If it was nutes, then all my plants would be affected, right? Ms. A still looks great to me (although I might need to change that to Mr. A- yes it's true. I was doing a brief preflower check and it looked to me like Mr. A and the Runt are bona fide sausage-fest cardholders... FUUUUUUUUUUUUUUUCK!) I'm only clinging onto the hope that my botanical illiteracy won't fail me now.
Ms. B still looks like shit. I swear, she looks EXACTLY how she did before, when you first started helping me- long and skinny, with all of her lower and upper leaves curled down and together like raptor talons. As far as I know that's over-watering, right? It's especially frustrating to know that for about 1 week, she was insanely gorgeous. I'm telling you, she could have been a supermodel for High Times. Now, she looks like a dirty, cracked out whore. WTF? Al, can you recreate that magic that you did for me those first few days and help me bring her back? At this point, I think she's my only female.
Updated Pix:
The whole dysfunctional family. BTW, do plants normally go through a cycle of standing tall vs slumping over? Every single day, when I head get home from work, Ms. A is standing straight up and perky, but when I leave in the morning she looks droopy and sad.
Ms. B in all of her gimped glory. I recently gave her a pruning so she doesn't have as many dead/curled leaves.
Those brown edges on the upper fan leaves are all within the last 2 days. Also, notice the slight drooping of the top.
Lower half of Ms. B. I pruned off a lot of the curled leaves where browning was occurring. The smallest leaves in the upper left-hand corner are typical of what I am seeing. Leaves that are tightly curled downward and into the center of the leaf and then curls downward towards the stem, just like a claw.
Ms. B. This picture makes me think that I am looking back in time to Ms. B @ 60 days. :Sigh:
PS. My plants always look better in pictures than in person.
Peace