spider mites, damaged plants

Gelbtafeln und Neemöl helfen Wunder :)

if u identified the mites might need a better kill method. could try predator bugs. Plants look stressed and over fed.

Ca,Mg excess and lockouts Adjust ur Ca/Mg ppm flush it and don't let it drought

First get your Environment in place befor try again, it won‘t work that way & you will only have struggles… also seems like the soil ain’t good…

They are so young to be that sick. It would be a miracle if they can recover. I would cut my losses and start over. Without a diary I have no clue what's up to help combat future infestations. What soil? Where are you trying to grow? The plants in the other pot are sick too.

Honestly, you would be better off starting again. Also, start a diary...........without knowing exactly what you may be or may not be doing, answers can only be "best guesses". Plants look very over fed though, or the soil mixture is much too rich/hot. Can't see any evidence of spider mite damage.

Could work, but I would go with Spruzit. Anyway starting a new grow is probably the best thing. But you will have to clean and desinfect your growtent before.