Guilty: Killed a Strawberry?

2:15 pm in Getting Started, How-Tos, Plants, questions, Seeking Advice by Georg Huber

Hi together,

yesterday I bought a small strawberry plant. I shook off all soil and put it into a cup, filled with expanded clay.

First the plant looked very well, especially this morning. During the day it went worse. Now the plant looks as below:

Does anyone know what I did wrong? I am thinking about too much water, maybe wrong ph-level (I didn’t check the actual level)?

Please help me from being guilty killing a strawberry plant.

Regards,
Georg