# Fish Harmony — See if your fish get along!

> Aquarium fish compatibility and reef safety guide. (iPhone/iPad app by Pat Canella.)

- Source: https://appshunter.io/ios/app/fish-harmony/id1309770017 (this page in markdown: same URL + `.md`)
- Developer: [Pat Canella](https://appshunter.io/developer/1309770016)
- Category: Education
- Price: Free
- Rating: 3.40/5 from 10 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 33 MB
- Languages: American English
- Released: 2018-05-10
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/fish-harmony/id1309770017/reviews.md

## What is Fish Harmony?

Fish Harmony is meant to give comprehensive compatibility data for every type of aquarium fish. Not sure if a lionfish is compatible with a clownfish (hint: it isn't)? Fish Harmony will also let you know if that kind of fish is Reef Safe, Reef Safe With Caution or Not Reef Safe (in saltwater mode only, obviously!), to prevent your coral from being munched on!

You can also use the Compare Fish-To-Fish button to do a 1:1 comparison of your chosen fish to another. 

For example, let's say you chose "Butterflyfish," and you want to see if it is compatible with Clownfish. You could just browse the "browse view" for Clownfish, but by clicking the "fish-to-fish", you can find the exact fish you are looking to compare with the Butterflyfish.

Available for both freshwater and saltwater.

Let us know what you think! Leave feedback or a review please! Thanks so much!

## Key features

- Fish compatibility data
- Reef safe ratings
- Freshwater and saltwater modes
- Fish-to-fish comparison
- Compatibility warnings


## Frequently asked questions about Fish Harmony

### What is Fish Harmony?

Fish Harmony is an educational app that provides detailed compatibility information for aquarium fish species. It helps users understand if different fish can coexist peacefully in the same tank and offers reef safety ratings for saltwater fish.

### Is Fish Harmony free to use?

Yes, Fish Harmony is available for free. There are no in-app purchases or subscription fees required to access its features.

### What types of fish compatibility does Fish Harmony cover?

Fish Harmony covers compatibility for both freshwater and saltwater aquarium fish. It provides specific data to help you make informed decisions about stocking your aquarium.

### Can I compare two specific fish species in Fish Harmony?

Yes, Fish Harmony features a 'Compare Fish-To-Fish' button that allows for a direct 1:1 comparison between any two chosen fish species. This helps you quickly see their compatibility.

### What is the reef safety feature in Fish Harmony?

The reef safety feature in Fish Harmony applies to saltwater fish and indicates whether a fish is Reef Safe, Reef Safe With Caution, or Not Reef Safe. This helps prevent damage to your coral.

### What devices is Fish Harmony available on?

Fish Harmony is currently supported on iPhone and iPod devices. It is designed for iOS users interested in aquarium keeping.

### How often is Fish Harmony updated?

The latest version of Fish Harmony is 2.3, and it was last updated on August 17, 2023. This indicates regular maintenance and potential feature additions.

### What is the age rating for Fish Harmony?

Fish Harmony has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in learning about fish.

## Version history (last 5 releases)

### 2.3 — 2023-08-17

- Fixed long standing scrolling issue that would cut off information
- Did some back end changes that will make for some smoother experiences

### 2.2 — 2022-11-17

Hey there Fish Harmony fans! I added a few minor things in preparation for some future updates:

- Dark mode improvements
- New Header and Tab Footer Designs
- Bug fixes for Search Bar
- New icon!

### 2.1 — 2020-05-10

- Added Basic Dark Mode 
- Minor Tech Debt Fixes

### 2.0 — 2019-08-27

~~~~~INTRODUCING: FRESHWATER MODE!~~~~~

- Now you can find the compatibility of your favorite freshwater fishy friends!!
- Compare/contrast Freshwater fish just like you do saltwater! Just use the bottom tab to switch between fresh and salt!
- Additional bug fixes/refactoring are also in this release.

### 1.1 — 2018-12-01

- Total under-the-hood UI restructure, meant to make future features easier to implement!
- Various minor UI changes
- Revamped "about" page!
- Bug fixes/stability improvements

## Apps similar to Fish Harmony

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Fish Identifier - Fish Scanner](https://appshunter.io/ios/app/fish-identifier-fish-scanner/id1604739565) | 3.8 (72) | Free | Education |
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| [Demon Connect](https://appshunter.io/ios/app/demon-connect/id1477666400) | 4.5 (61) | Free | Education |
| [向上学生 – 小学生学习好帮手](https://appshunter.io/ios/app/id1469182240) | — | Free | Education |

## More apps by Pat Canella

- [KlickyTracker](https://appshunter.io/ios/app/klickytracker/id1660636101)

All apps by Pat Canella: https://appshunter.io/developer/1309770016

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*