The aquarium app that actually does the work.
Scan fish, test water, and plug readings into one place instead of spreading it across notes, photos, and five different sites.
What App-aquatic does
Six things we lean on day to day with our own tanks.
Species scan
Point your camera at any fish for instant identification - species name, care requirements, temperament, and ideal water parameters in one scan.
Illness detection
The illness scan reads what you can see in the photo, names likely issues, and points you at practical treatment steps.
AI strip scanner
Scan any test strip with your camera and get instant parameter readings. Works offline, always free - use pre-calibrated kits or build your own.
Tank simulator
See the exact impact of adding a new fish before it enters your tank - bioload, pH and temperature compatibility, aggression, and swim space checked instantly.
Water tracking & history
Log every test result with your camera. Build a full parameter history - spot trends before they become problems and see what's changed over time.
Tank ledger
A complete timestamped record of every test, water change, fish addition, and maintenance task - maintained automatically as you use the app.
Enough detail, without the wall of charts.
Fishkeeping goes deep if you want it to: water, behaviour, disease, plants. Plenty of apps either hide all of that or dump everything on you at once.
We tried to split the difference - quick scans and logs on the surface, heavier stuff a tap away when you need it.
Built by people who actually run tanks. Meant to be the one app you keep open during the week.
Data licensing
The freshwater fish database, species profiles, and related datasets on this site are © App-aquatic. All rights reserved. You may use them for personal fishkeeping; republication or commercial reuse without permission is not allowed.
Ready to try it?
Free to download on iOS and Android. No account needed to get started.