# Fish Doctor > Expert guide to ornamental fish diseases with videos and e-books. (iPhone/iPad app by Bassleer Biofish.) - Source: https://appshunter.io/ios/app/fish-doctor/id839600610 (this page in markdown: same URL + `.md`) - Developer: [Bassleer Biofish](https://appshunter.io/developer/839600613) - Category: Books, Reference - Price: Free with in-app purchases - Rating: 4.70/5 from 3 App Store ratings - Age rating: 12+ - Requires: iOS 16.0 · 30 MB - Languages: American English - Released: 2014-03-27 - Data updated: 2026-08-21 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/fish-doctor/id839600610/reviews.md ## What is Fish Doctor? Fish Doctor contains informative and educational tools on fish diseases. The app’s are made by Dr. Gerald Bassleer (°1954) who is a worldwide recognised expert in fish diseases and trained fish pathobiologist. Since 1977, experience & study & training in the international field of the ornamental fish industry has led to an enormous data base on prevention, diagnosis and treatment of ornamental aquarium and pond fish. All this material has been gathered in e-books with interesting videos to be downloaded for those who are interested to learn about Why? How? When? Where? What? Etc….are there problems with our ‘living jewels’. We show at least 50 videos with the behaviour of the suffering fish with their typical signs of disease. Many microscopic observations on bacteria, fungi and parasites have been included on video. This shows you what is going on with your fish and it is made for those who want to learn to use a microscope (which is NOT difficult). The text and information is written in easy language and technical, difficult language has been avoided. The purpose of “Fish Doctor” is to educate all those who are involved as hobbyist, breeder,collector, exporter, wholesaler or pet shop…to keep fish in better (nearly perfect) condition. ## Key features - Expert-developed fish disease information - Educational e-books - Informative videos on fish behavior - Microscopic observations of pathogens - Easy-to-understand language - Diagnosis and treatment guidance ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | The Practical Guide to Fish Diseases | $27.99 | one-time | | Diseases in marine aquarium fish | $27.99 | one-time | | The New Illustrated Guide to Fish Diseases | $54.99 | one-time | | Fish Diseases - Italian | $7.99 | one-time | | Fish Diseases - German | $7.99 | one-time | | Fish Diseases - English | $7.99 | one-time | | Fish Diseases - French | $7.99 | one-time | | Fish Diseases - Dutch | $7.99 | one-time | | Fish Diseases - Chinese | $7.99 | one-time | | Fish Diseases - Brazil | $7.99 | one-time | ## Frequently asked questions about Fish Doctor ### What is Fish Doctor? Fish Doctor is an educational app providing comprehensive information on fish diseases, developed by expert Dr. Gerald Bassleer. It includes e-books and videos to help users understand and manage fish health issues. ### Who developed the content for Fish Doctor? The content for Fish Doctor was developed by Dr. Gerald Bassleer, a globally recognized expert in fish diseases and a trained fish pathobiologist with extensive experience since 1977. ### What kind of videos are available in Fish Doctor? Fish Doctor features at least 50 videos showcasing the behavior of sick fish and their typical disease signs. It also includes videos of microscopic observations of bacteria, fungi, and parasites. ### Is the information in Fish Doctor easy to understand? Yes, the text and information in Fish Doctor are written in simple language, avoiding technical jargon. This makes it accessible for hobbyists and professionals alike. ### What devices does Fish Doctor support? Fish Doctor is available for iPhone and iPad devices. ### What is the age rating for Fish Doctor? Fish Doctor has an age rating of 12+, indicating it is suitable for users aged 12 and older. ### How often is Fish Doctor updated? The latest version of Fish Doctor is 17.31, last updated on May 28, 2026. This suggests a history of regular updates to the application. ### Does Fish Doctor have ads? No, Fish Doctor does not contain advertisements. The app is free to download and use, with optional in-app purchases available. ## Version history (last 5 releases) ### 17.31 — 2026-05-28 Minor Text update to "Diagnostic" Page. Minor bug fixes ### 17.28 — 2025-12-20 Minor Updates and Bug Fixes ### 17.26.1 — 2025-05-16 Fixed an Issue with the Consultant button on the home screen. This will now bring the user to the correct edition. ### 17.26 — 2025-04-13 - Added new Digital Fish Doctor for users to ask questions. - Minor updates and Bug fixes ### 16.9 — 2024-01-15 - Minor branding updates ## Apps similar to Fish Doctor | App | Rating | Price | Category | | --- | --- | --- | --- | | [ET Móvil - CETA](https://appshunter.io/ios/app/et-movil-ceta/id890941800) | — | Free | Books | | [The Japanese Bible for iPad](https://appshunter.io/ios/app/the-japanese-bible-for-ipad/id828254060) | — | $1.99 | Books | | [Rabbana ربنا](https://appshunter.io/ios/app/rabbana/id934342980) | 1.0 (1) | Free | Books | | [The Vulgate Bible in Latin and English](https://appshunter.io/ios/app/the-vulgate-bible-in-latin-and-english/id893453020) | 4.5 (15) | Free | Books | | [Bible Audio Français LS 1910](https://appshunter.io/ios/app/bible-audio-francais-ls-1910/id936394900) | 4.0 (3) | $3.99 | Books | | [US Sailing Bookstore](https://appshunter.io/ios/app/us-sailing-bookstore/id1176980130) | 2.9 (14) | Free | Books | ## Related topics [woah aquatic diseases](https://appshunter.io/ios/topics/woah-aquatic-diseases) --- *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 2026-08-21.*