With this app, you can easely check the water values in your aquarium.

It contains the ideal water values for Axolotl, Lake Malawi, Tanganyika and goldfish aquariums. You can check the following water values: CU (copper), Fe (iron), GH (General hardness), KH (carbonate hardness), NH ₄ / NH3 (ammonia / ammonia), NO ₂ (nitrite), no. ₃ (nitrate), PH (phosphates), PO ₄ (phosphate) and temperature
The measured values can be stored and the history of the values is displayed in a graphic.
You can now save the measurements as an csv file on your OneDrive. You can easily open this file in Excel.