What is this? nutrient lockout? heat stress? too high humidity?

Strain: Candyland(9 week strain)
week 5 of flower
temperature has usual been between 68-81, usually a little under 80. I feed them an all organic nutrient line with an additional nutrient that I believe is partially synthetic because is says "naturally derived" and no 100% or all organic. Its called MASSIVE and its for bulking. My leaves started to turn a little yellow and brown almost a week ago. I thought I had a salt buildup and my plants were locking out, so I flushed them. Since then it has gotten worse. Is this normal if it IS in fact a lockout? It would make sense, but I want to make sure because anything gets worse. Also it was very hot today, it got up to 86 for 2 different 30 minute intervals until I changed a few things to get the temperature back down. Humidity has been between 40-55%, very seldomly getting up to 65%. I need to water them tonight or early in the AM. I am thinking of just giving them the all organic nutrient line at late flower nutrient regime and not using the light synthetic, MASSIVE. Also I should add, I've been using compost tea once to twice a week(this is my run using it) and it seems to have done nothing but wonders to my garden, that I know of.

What are your thoughts? any suggestions are much appreciated

Pictures are below, some through my garden glasses(blue hint ones) and some without any sort of filter.

that damage is unreversible. looks like it was nute burn fro the massive. I would back off of nutes for the rest of the way. look nearly done.

nice ph'd water from here out. hopefully the whole product wont be harsh. next run use at much less strength.

Velvet Elvis said:

that damage is unreversible. looks like it was nute burn fro the massive. I would back off of nutes for the rest of the way. look nearly done.

nice ph'd water from here out. hopefully the whole product wont be harsh. next run use at much less strength.

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It's at 5 weeks into flower and is supposed to be 8-9 week strain, should I cut them early or try to bring them back to health? I flushed them 3 days ago and they got worse, I'm worried that if I flush again they'll just keep getting worse. About 25% of the canopy is like this now. 3-4 days ago only 10% of the canopy was like this and not even to this extent.

has your water source been clean? no chance of contaminants, or a mix up mixing it up? looks like you may have poisoned them whether it be cleaning chemical, chlorine, crazy PH or way over fert.

when you flushed them the damage was already in the works, them being worse today is not because of flushing. looks like they were doing real good until then. any jealous friends or mad GF?

Sorry to say but I would try to eek out another week or two, and hopefully gain some new growth or trichs. I always thought candyland was more of a lanky one, yours look more GDP. In that case they might be a 7-8 weeker.

Velvet Elvis said:

has your water source been clean? no chance of contaminants, or a mix up mixing it up? looks like you may have poisoned them whether it be cleaning chemical, chlorine, crazy PH or way over fert.

when you flushed them the damage was already in the works, them being worse today is not because of flushing. looks like they were doing real good until then. any jealous friends or mad GF?

Sorry to say but I would try to eek out another week or two, and hopefully gain some new growth or trichs. I always thought candyland was more of a lanky one, yours look more GDP. In that case they might be a 7-8 weeker.

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Water is clean, filtered through a Boogieblue filter to get chlorine and chloramine out.
I have been on top of keeping my reservoir clean this run as well, always getting rid of all the left over nutrients and water and using hydrogen peroxide to kill bacteria and then let it sit for 24+ hours to evaporate, so I don't kill the microbes in the plants medium.
Just tested the Ph pen today, it's only about .2 off
No jealous friends or mad GF that could tamper with them.

This was pretty lanky, I just topped it a bunch and trained it through the tomato cages. But yeah I can see the GDP in them. Candyland is a cross between Bay cookies and GDP, if what I've read is correct.

Ouch. It hurts too c them pics. I feel ur pain brother

I'd say it's nute burn man, poisoning is right. If the damage appears at the top first it's usually food related. Sometimes you can have too much of a good thing eh? If you've flushed them properly then I'd hope otherwise healthy looking ladies would pull themselves back together. Shame to have put a dent in productive flower time. I too feel your pain

just a medicator said:

Water is clean, filtered through a Boogieblue filter to get chlorine and chloramine out.
I have been on top of keeping my reservoir clean this run as well, always getting rid of all the left over nutrients and water and using hydrogen peroxide to kill bacteria and then let it sit for 24+ hours to evaporate, so I don't kill the microbes in the plants medium.
Just tested the Ph pen today, it's only about .2 off
No jealous friends or mad GF that could tamper with them.

This was pretty lanky, I just topped it a bunch and trained it through the tomato cages. But yeah I can see the GDP in them. Candyland is a cross between Bay cookies and GDP, if what I've read is correct.

Click to expand...

Just thinking, if I were you I might try and stop running water through that filter, that could be part of your problem. Filters like that don't actually remove chlorine from water, they reduce it from chlorine to chloride, which is water soluble, and can easily become built up in soil or other mediums. Chloride is also very easily taken up by plants roots, and too much chloride has a very similar effect to salty or brackish water, and chloride toxicity looks very similar to what is happening to your plants. If you let your tap water sit for 24 hours (a step I personally believe to be unnecessary) the chlorine will evaporate, but once it has been put through the filter and converted to chloride it won't evaporate, and will stay in the water and whatever you water with it. Just my $0.02

Stop using nutrients and flush for 1 week - then readjust your nutrients (P&K) at reduced rates, many use foliage feeding to fight lock-out (which you have also) but to late in flower stage to do. Your plants are sick and would not use any nutrients for rest of grow, considering the amount ot time left in flower