Well these watercress as far as I know from reading and watching some youtube videos, it survive or thrives from clean water, I guess no special nutrients, also water need to be moving water not standing, so will see. I also have air-stone and some light 8hrs.
![](https://thongtran.com/wp-content/uploads/2020/10/IMG_20201003_183850150-1024x768.jpg)
![](https://thongtran.com/wp-content/uploads/2020/10/IMG_20201003_183903695-2.jpg)