Is this a Deficiency?

Übersetzter Text Hi hi, looks like the lady needs a new pot, at some point she'll run out of space and nutrients at the bottom. Probably because everything has already been used up. A new pot, possibly without fertilizer at first, depending on what kind of soil you use. If your water is pure rainwater or osmosis water, always add a little CalMag. And maybe a minimal amount of nitrate... 😄

hey 👋 It’s time to transplant them into a proper pot 👌 Wait until the substrate dries out a bit, transplant them, and give them some Cal-Mag, which they clearly need; if you have any, add a root booster during the next waterings

The new leaves have already felt that over fert