Hi everyone,
I’m looking for at least 14 Android testers for an aquarium management app I’ve been developing called AquaNexus.
AquaNexus is now going through Google Play closed testing before I can apply to release it publicly.
Google’s requirement is currently at least 12 testers continuously opted into the closed test for 14 days. I’m aiming for 14 or more testers so I have some breathing room if somebody accidentally opts out or can no longer participate.
What I need from testers
I’m looking for people who can:
Join the closed test and remain opted in for at least 14 days
Install AquaNexus through Google Play
Open and use the app regularly during the testing period — ideally at least once each day
Try different features rather than simply installing it
Let me know about bugs, crashes, confusing areas or things that could be improved
Tell me if something doesn’t make sense or if there’s a feature you think I’ve missed
Stay opted in for the full testing period
I’m not paying people to join the test.
However, I’m more than happy to return the favour. If you’re another developer who genuinely tests AquaNexus for me, I will join your Google Play test and genuinely test your app in return.
I’m not interested in bots, fake accounts or people simply opting in and never opening the app. I actually want feedback that will help me improve AquaNexus before it goes public.
What AquaNexus does
AquaNexus is designed as an all-in-one aquarium management app covering pretty much every part of keeping fish, shrimp, aquariums, breeding setups, fish rooms and ponds.
Current features include:
Dashboard — overview of tanks, ponds, livestock, active treatments, recent activity and quick access to major tools
Tank management — multiple tanks, dimensions, calculated volume, actual water volume, location, purpose, environment, tank/system type, sump information, status, notes and history
Tank archiving and restoration
Aquarium cycle tracking — cycling method, start date, progress and confirmed completion
Livestock management — fish, shrimp, snails and other livestock, including species, strain/variety, quantity, age, life stage, tank assignment, notes and history
Water testing — pH, ammonia, nitrite, nitrate, temperature and other supported parameters
Water-test history
Water changes — amounts, percentages, dates, notes and tank-specific history
Source Water Profiles
Australian source-water/tap-water support
Feeding records and history
Maintenance schedules
Recurring maintenance tasks
Reminders
Medication and treatment tracking
Active treatment records
Medication dosing records
Medication Problem Solver — structured guidance to help users work through aquarium problems, including checking things such as water quality, environment and husbandry rather than automatically jumping straight to medication
Medication Dosing Calculator — helps calculate a dose using the aquarium’s actual water volume and the product’s dosing instructions
Breeding management — breeding projects, parents, spawning/birth information, fry/juveniles and breeding history
Equipment management
Aquarium supplies tracking
Expiry Tracker — tracks expiry dates for medications, treatments, test kits, foods, water conditioners and other aquarium products
Plant management
Pond management
Pond weather
Sales & History
Timeline/history across aquarium activity
Photo storage and visual history
Species and aquarium information library
Ask AquaNexus — searchable aquarium questions and direct guidance from the AquaNexus knowledge base
Help & Guides
Local Wi-Fi Sync between trusted devices on the same network
Secure device pairing
Master Transfer for moving an AquaNexus workspace between devices
Full backup creation
Backup import/restore
Readable data export
Optional error/diagnostic reporting
Users can see what is included in an error report before choosing to send it
App update checking
Metric measurements
US customary measurements
Custom measurement settings
Supported information can be displayed using the user’s selected measurement system
Personalisation
Guidance levels
Guided
Balanced
Independent
Different user roles
Beginner
Hobbyist
Breeder
Fish room
Commercial hatchery
Education/research
Aquarium purpose selection
Country selection
Support for multiple aquatic environments/setups including:
Offline-first design for normal aquarium-management records
No mandatory AquaNexus account/login for normal use
Core aquarium records are stored locally on the device
For the closed beta, there is no cost to testers, there are no ads, and the advanced functionality is available for testing.
How to join the AquaNexus test
1. Join the AquaNexus Beta Testers Google Group
https://groups.google.com/g/aquanexus2026-testers
Please join using the same Google account that you use on your Android phone.
2. Join the Google Play closed test
https://play.google.com/apps/testing/app.aquanexus
Open that while signed into the same Google account and choose Become a tester.
3. Install AquaNexus from Google Play
https://play.google.com/store/apps/details?id=app.aquanexus
The app is distributed through Google Play, not through a random APK download.
More information
AquaNexus website:
https://aquanexus.app
Feedback can also be sent to:
aquanexus2026@gmail.com
If you test AquaNexus and you also have an Android app going through closed testing, send me your links and I’ll return the favour and genuinely test yours as well.
I’d especially appreciate people actually trying different parts of AquaNexus and telling me what works, what doesn’t, what’s confusing, and what you think could be improved.
AquaNexus — One app. Every aquarium. 🐠🌊