About the project

Where the idea came from

I wanted to check whether what I do with my aquarium really works: whether a change in fertiliser, light or CO2 actually shows up in plant growth. Without measurements all you have is an impression, and impressions are easy to fool. So I started measuring the key water parameters continuously and recording every change in the tank.

What I want to achieve

• See the results in numbers: charts of temperature, pH, CO2 and water level, and a before-and-after comparison for every change.
• Maximise plant growth: stable CO2, fixed lighting hours and fertilising based on test results (see pH and CO2).
• React to failures fast: an alert on the phone before a broken heater or a leaking hose does damage.
• Keep the data at home: everything runs locally, no cloud and no ads.

How the app is made

Every feature is tested on my own tank first. Project management experience helps me plan releases in small steps and test a lot; the full list of changes is in the app, under Settings. The guides on this site come from my own fishkeeping practice.

The app is in testing and free until the end of 2026. If the project proves itself, I want to keep developing it and make it available more widely, including as a ready-made solution for other fishkeepers.