Can this be from the h2o2 i added today???

I added about 2ml per gallon of 35% h2o2 to my res but i did it a little faster then i normally do and i just noticed most of their leafs are curled and basically looked burned from the inside. The h2o2 is the only thing i did today and everything looked amazing the morning. Will they recover or is it game over for my them
is it possible it could of been from the heat wave we had today?
its outdoors in a greenhouse and the temps have been about 60 to 70 but today it reached about 100 in the greenhouse.
I am trying to figure out if its something i can fix or just let them go.

I would say yes. Overdosed H202. The 35% food grade hydrogen peroxide needs to be diluted down to 3% strength then you can add it to your res at 3% also.

Darkoh69 said:

I would say yes. Overdosed H202. The 35% food grade hydrogen peroxide needs to be diluted down to 3% strength then you can add it to your res at 3% also.

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I have been adding it @35% but at about 2ml per gallon for a while now on 2 of my rdwc setups and no issue besides what happened yesterday and only 2 factors could of caused it, overheating , aka normal temps outside where about 70 and it spiked to 100 yesterday and the fact that i added the h2o2 too fast and im thinking my pump just picked it all up and dropped it on the root zone and burned them. or it was the heat lol. non the less i hope they recover

Yep. You know what you've done. & you probably know what to do. Flush them & try cool them. I wouldnt add h202 directly to the res. Take a bucket of res water out add the h202 to that bucket pour half of that mix back into your res, top the bucket back up with more res water then pour it all back into your res. You dont have to but if something does go wrong it narrows the list of possible causes

Yeah I've also read you should dilute 35% at least 10:1 right before adding it.

Yikes. Well what’s the fix now or is there one?Rinse a couple of time and hope? Good luck.

They may make it...

Those temperatures may explain the wilting
You are creating an environment where pest and problems thrive

What was the temp of your water when you poured in the h202

@myke They bounced back perfectly, besides the leafs that got burned" which was a few on each ". I did exactly nothing. Since h2o2 dissipates rather quickly and the amount i added was not an overdose rather was added to quickly and didnt have enough time to dilute. So i left it alone and sure enough they are all back . Oh res temp that day was 80F.

@JohnDee They Sure did

@fragileassassin Agreed on the 10:1 - thats what i always do on both of my RDWC systems. except that 1 time i got too cocky and added it straight to the res and thinking that my res is about 15gallons it should dilute by itself. I guess it got sucked into my pump before it had a chance to dilute and went straight to the roots. anyway all is well now.

@Herb & Suds I grew it last year outdoors with water temps well over 80 to 100 and daytime temps in the 90 to 100. I know a perfect climate will give me a better yield + less issues with roots and all but i wanted to find a way to grow outdoors in a rdwc system without all the bells and whistles and so far its working out.

To everyone that helped and commented. Thank you very very much, i was honestly depressed thinking i was gonna lose all of them but glad to report they look like they will make it. I will post some photos shortly. ( Here are some pics from today!)

They are hardy plants...happy for you. Keep them green.
JD

Good news,