Not exactly; I don't think she will be OK if left like that!
What I explained was the fact she looks like K hungry
You container is too small to contain enough soil for your plants to thrive without bottle nutrients.
You are middle flowering, barely gave them any so far, so my suggestion was
Try to follow Biobizz feeding chart.
I would also suggest for next round you go with larger containers. 15 gallons are great for an organic grow where you can build a living soil and don't need to worry about feeding anymore!!