The Fishkeeping App That Does the Hard Part
Scan fish. Test water. Know your tank. App-aquatic gives you the right information at the right time — so you spend less time worrying and more time enjoying.
See what it does →
Most fish problems are avoidable.
Overstocked tanks · Wrong water · Incompatible fish · Missed maintenance
App-aquatic catches these before they cost you. Scan, log, simulate — then get on with enjoying your tank.
Test Your Water In Seconds
Log a reading and instantly know what it means — and what to do about it.
- 📊 Full parameter history — spot problems before they hit your fish
- 📈 Trend charts — see if your tank is stable or slowly drifting
- 💡 Plain-English advice on every reading, every time
Scan Any Fish. Know Everything.
One photo. Instant species ID, full care profile, and a health check — before that fish ever touches your tank.
- 🔬 Health scan flags diseases, stress signs, and injury from a single photo
- 📋 Clear treatment guidance — no forums, no guessing
- ⚗️ Simulates that fish against your tank instantly — params, compatibility, space
Know Your Tank Instantly
Everything that matters about your tank — one screen, always current.
- ❤️ Live health score — thriving or under stress, you’ll know immediately
- ⚖️ Precise bioload calculation for your exact setup
- 🧪 Add-a-fish simulator — see the impact before you commit
- 📌 Every alert and insight surfaced automatically — nothing to dig for
Depth where it matters. Clarity everywhere. No waffle.
Explore the dashboard →
Your Tank’s Memory — Fully Automated
Every reading, every change, every pattern — logged without lifting a finger.
- 📅 Complete timeline: every test, water change, and livestock addition
- 📉 Catch slow-burn problems — nitrate creep, pH drift, recurring spikes
- 🔁 Months and years of history, always at a glance
The best fishkeepers aren’t guessing — they’re reading their history.
See tank history →
Strip Scanner — Any Kit, Always Free, Works Offline
Other scanners charge per scan, lock you to one brand, or need Wi-Fi. This one does none of that.
- 📦 Pre-calibrated profiles for the most popular kits — scan in seconds, no setup
- 🎨 Calibrate your own kit once — works with any brand, reusable forever
- ✈️ 100% offline — no Wi-Fi, no subscription, no data sent anywhere
- 📋 Results logged automatically the moment you scan
You bought the strips. You shouldn’t need a subscription to read them.
See the strip scanner →
Scan. Simulate. Decide.
Scan a fish or search by name — get an instant simulation of its impact on your specific tank. All the questions answered before you make the call.
- ⚖️ Exact bioload impact on your current stocking and filtration
- 🌡️ pH and temperature compatibility checked against every fish already in your tank
- ⚔️ Aggression and territory conflicts flagged before they happen
- 📐 Space and swim zone analysis — will your tank actually fit this fish?
No more buying a fish and hoping for the best. Simulate first, decide with confidence.
See the simulator →
Fish Compatibility Checker
Know if fish will get along before they share a tank. Group sizes, swim zones, and temperament — checked instantly.
Check compatibility →
Aquarium Log & Water Tracking
Add readings manually in seconds, or let the strip scanner do it automatically — point, scan, done. Your log builds itself.
- 🧫 Track ammonia, nitrite, nitrate, pH, temperature, and more — every test stored automatically
- 📷 Strip scanner reads your test strip in one photo and logs the values instantly
- 📊 History and trend charts so you see what’s changing before it becomes a problem
We track what actually matters for the majority of fishkeepers — hitting the sweet spot between depth, ease, and time. Enough to keep your tank safe. Not so much it becomes a chore.
See the water log →
Caretaker — Personalised to Your Tank
Reminders and schedules built around your actual setup — tank size, species, equipment. The right tasks, at the right time, every time.
See the Caretaker →
Equipment & Supplies Tracker
Know when to replace filter media, order supplies, and service equipment — before it becomes a problem.
See equipment tracking →
Fish Library — Hundreds of Species
Care requirements, compatibility, ideal parameters, and max size — every species in one searchable place.
Browse the library →
New to fishkeeping? Start here
Plan before you buy. Use our fishkeeping guides so you don’t guess.
Free stocking calculators
Plan tank stocking with bioload, compatibility, and pH/temp checks. No sign-up required. How to use. Tank size calculator.
Our Users
What aquarists are saying about App-aquatic.
Excellent app for fish keeping tracking.— App-aquatic user
One of the things I found most valuable is how the platform emphasizes clarity and practical guidance. The dashboards are designed to highlight metrics that matter like water quality trends and stock compatibility so you are not left guessing how your tank is doing. I also appreciate that they have built in helpful guides and resources, especially for beginners covering topics from tank cycling to maintaining healthy water conditions.— App-aquatic user
Actually really thorough and genuinely useful.— App-aquatic user
I love this app. Really clean layout, simple to understand. I have several tanks and it’s really helping me manage them with daily reminders for each tank. I don’t know how I managed without it.— App-aquatic user
My son just recommended this app to me to help track my 3 tanks — love how easy it is to use and the dashboard section. I actually had to adjust the temperature in one of my tanks given the different fish based upon one of the insights from this app. I have not really used the education section as I know what I’m doing but may check it out later. Would be great to be able to share tank setups with people :)— App-aquatic user
Our promise
We want you to love App-aquatic. Free trial so you can try before you subscribe. No ads, ever. See FAQ for details.
Start managing your aquarium today
Download App-aquatic and keep your fish thriving.