PH issues & is my plant dying?

[Ovah]

Hello.
Last couple of days my PH dropped like a rock in 24h from 6.2-5.5 when I had the EC at 1.00 so I decided to lower my EC to 0.5 and still the PH dropped. After reading some thread I decided to buy Oxyplus(H2o2), run that for 24h to sanitise my DWC system and hopefully kill any bacteria if my plant now have been effected by some bacteria.
At 16.30pm today the plant have been on with Oxyplus (H2o2) for 24h so I can put some nutes back in.
Should I go low on the EC, about 0.5 or bump it up to around 1.0?

Water temp: 20c (68F)
Room temp: 25c (77F)
Humiditiy: 41%
12 days since transitioning to flowering.

I use AN ph-perfect M-G-b and I´ve been growing for some years with AN products and never encountered this before.
Think om gonna with switch to AN jungle juice series M-G-B, I have some bottles of that stuff left to see if maybe that wont make the PH drop.

Any thoughts on what could be the problem?

Best regards

I opened my tent today and saw this:

And a 3rd branch on the other side looks the same.

 

[Hugo Phurst]

I've had branches drop over like that when the ph dropped dramatically. I adjust using ph up & down and go by PPM, so I can't help with adjusting ph with ec.

I'd go to 3/4 strength nutes and see if she recovers.

Looking at the last pic, I have to ask.....how deep in the water does your plant sit?

 

[Ovah]

I've had branches drop over like that when the ph dropped dramatically. I adjust using ph up & down and go by PPM, so I can't help with adjusting ph with ec.

I'd go to 3/4 strength nutes and see if she recovers.

Looking at the last pic, I have to ask.....how deep in the water does your plant sit?

Ok.
This time with the oxyplus h2o2 in the tank I went pretty high get all contact with all the roots. Usually I don't fill up that much, leave a pretty big gap.

The tank is 15L (3.96gallons).

 

[Airwalker16]

Ok.
This time with the oxyplus h2o2 in the tank I went pretty high get all contact with all the roots. Usually I don't fill up that much, leave a pretty big gap.

The tank is 15L (3.96gallons).

Your entire netpot is submerged when it's sitting on the bucket man. Lower your water level to 2" BELOW THE NET POT. You'll rot your stem.
Also, you've obviously got hollow stems, so prepare to befriend yoyos, string, or if you're quick enough, throw this in the tent, cut it to size and attach it to your tent poles.

https://www.amazon.com/VIVOSUN-Heavy-Duty-Polyester-Trellis-Netting/dp/B00P7RUI3U

 

[Ovah]

Your entire netpot is submerged when it's sitting on the bucket man. Lower your water level to 2" BELOW THE NET POT. You'll rot your stem.
Also, you've obviously got hollow stems, so prepare to befriend yoyos, string, or if you're quick enough, throw this in the tent, cut it to size and attach it to your tent poles.

https://www.amazon.com/VIVOSUN-Heavy-Duty-Polyester-Trellis-Netting/dp/B00P7RUI3U

Ok, i've lower the water now to 2" below the net pot. Im gonna put a net up.
What causes hollow stems?

 

[Kipn]

it looks like you bent the branch trying to kink it if not its strange to see a thick branch like that bend on its own

 

[Ovah]

it looks like you bent the branch trying to kink it if not its strange to see a thick branch like that bend on its own

I didn't there are 3 branches like that, happened over night. Never seen that before.