A little care. A thriving aquarium.

Aquarium Companion.Your daily care journal.

A private aquarium journal for freshwater, marine and reef keepers. Record measured water values, livestock and care offline, with optional cloud backup and English or Nepali.

Get support

Android & iOS · Available

01Works offline02Freshwater · Marine · Reef03English · नेपाली

Made for everyday use

What Aquarium Companion does.

01

Keep a measured history

Record optional water values with observation times, original units and notes. Follow real samples in trends with your own sourced targets.

02

Make daily care manageable

Schedule once, daily, selected weekdays or every few days. Complete or skip care, add notes and record a water-change amount.

03

Know each aquarium

Keep tank details, fish, plants, invertebrates, corals and private photos together. Add inhabitants during setup and archive a tank without removing its journal.

04

Keep control of your journal

Start without an account, choose whether to merge a guest journal, resolve conflicting edits and export JSON, CSV and available photos.

05

Learn and plan offline

Browse sourced species profiles and bilingual care articles, keep downloaded content offline and use volume/water-change tools. Guidance supports your judgment; it does not diagnose livestock.

Getting started

A few simple steps.

  1. 01

    Add your aquarium

    Choose freshwater, marine or reef, calculate net volume, pick a care timezone and add your inhabitants before saving.

  2. 02

    Record observations and care

    Log measured water tests and care outcomes. Use optional advanced parameters when relevant.

  3. 03

    Review, export or sync

    Inspect trends and history locally. Export a copy or connect an account for private cloud synchronization.

Good to know

A few questions,
answered.

Need something else?
Contact support

Do I need an account?

No. The daily journal, tools, reminders and export work locally. Public species profiles and articles download without an account and stay available offline. An account is needed for cloud sync.

Which aquariums are supported?

Freshwater, marine fish-only and reef tanks are supported. Parameter choices follow tank type, and advanced fields remain optional.

Does it tell me whether my water is safe?

It shows recorded measurements and your custom sourced targets. It does not diagnose disease, guarantee compatibility or prescribe chemical doses. Verify observations and seek qualified advice.

Can I export or delete my information?

Export JSON, CSV, pending edits and available photos in Settings. Request cloud account deletion in the app or use the account-deletion page. Keep a backup first.

How do reminders and offline sync work?

Reminders use the schedule timezone and device permissions. The nearest 48 events within 90 days are scheduled. Open the app periodically. Offline edits remain queued until acknowledged; conflicting changes need your choice.

Where can I download the app?

Use the Google Play and App Store links on this page for Android, iPhone and iPad.

A little care. A thriving aquarium.

Android & iOS · Available

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