Do you have coral reef?
Now you can track your saltwater aquarium for measured parameters on your Jolla Phone!
This version allows you to:
- create, rename, and delete aquariums
- enable or disable water parameters for tracking
- log your last water change date
- history of measured values
- edit or delete measured values in history view, including water change volume
- support for My Backup
Actual min/max values for each parameter are set for my needs, lets see if there are some other sailors with coral reefs, let me know in comments! 
In the next versions there could be:
- custom water parameters
- custom minimum and maximum values for each parameter
If you have Hanna HI736 ULR Phosphorus checker, you can type directly Phosphorus values and app will convert to Phosphate automatically 
You can use this app for fresh water aquarium too, so you will enable only few parameters like nitrate, phosphate, ph, kh …
Source: koza/harbour-sailreef - Codeberg.org
No AI just pure goat code.
Screenshots:
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