根腐在花中

Today, I found that the pH value was drifting abnormally. I entered the growth room and found that the roots of the plants blocked the drainage pipe, which caused the water to accumulate without oxygen. Root rot has already appeared and it has caused leakage. I added a pool shock of about 5 PPM, and waited for a while to change the water. Is there anything else I should pay attention to?

检查是否有难闻的气味。
祝你好运

Thanks，There is no unpleasant smell. I checked my monitor. This problem should have affected the plants around 10 o'clock last night. The first picture is the change of PPM, and the second picture is the change of PH. Because English is not my native language, please understand if there is any unclear expression.

You're perfectly clear.

I believe that you'll be fine

Have fun

To be honest, because I usually run the aseptic reservoir, except for the root rot when I first grew up, it never happened again, so I am not very sure my treatment is correct or not. And I currently have only four plants in flower, I don't want to lose any of them. Especially after 7 weeks of veg.

I currently only have pool shock and Physan 20, do I need to buy anything more? Any suggestions are greatly appreciated,

Sorry, can't help there