Chop one inch off the top of the carrot, put it in a container and fill in the warter up to 0.5 to 1 cm.
Started to rot.
Rot is getting worse.
The carrot rotted in the water and become very squishy.
I put the carrot in a shady area of the balcony, probably getting an hour of direct morning sun.
Maybe the balcony heat kill it, or maybe the carrot quality is no good when planted.