Kratky first hydro grow

Root rot, bacteria, fungus some nasty shiet. My ph was rising in 2 hours from 5,8 to 7 or more... without airstones it was dropping, water like milk i 2 days from res change, slimy things... 1 week of fighting , flusching roots, soaking in peroxide nothing worked. So today i did soaking in bleach, strong solution. Mixed new res with little nutes and bleach, 10l only in res and water pump is sprying on roots. I think it will be the end. Best week to gain tops weight and it didnt worked. Shiet shiet shiet. Peace