# Aquarium Calculator Plus — All u need for ur aquarium > Aquarium volume, stocking, and equipment calculator for fish tanks. (iPhone/iPad app by Heng Jia Liang.) - Source: https://appshunter.io/ios/app/aquarium-calculator-plus/id1642256257 (this page in markdown: same URL + `.md`) - Developer: [Heng Jia Liang](https://appshunter.io/developer/1532000635) - Category: Utilities, Productivity - Price: $2.99 - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 12.0 · 9 MB - Languages: American English - Released: 2022-09-01 - Data updated: 2026-07-09 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/aquarium-calculator-plus/id1642256257/reviews.md ## What is Aquarium Calculator Plus? Aquarium calculator can be used to calculate the volume of water in square, rectangular, cylindrical or hexagon aquariums. Water volume is needed to ensure you treat your aquarium with the correct dosage of medication and fish stocking levels. You can convert the dimensions of your aquarium (in inches or centimeters) to a close approximation of its volume (in both U.S. gallons and liters) quickly and easily. Features: • Calculate the volume in square, rectangular, cylindrical or hexagon aquariums. • Calculate the water needed 1in [2.5cm below aquarium height]. • Calculate aquarium surface [for table top preparation]. • Calculate sand need [1 in / 2.5cm thick] for the aquarium. • Recommend amount of fish [with various sizes] which aquarium can support. • Recommend pump size with flow rate [Liter/Hour or Gallon/Hour]. • Recommend pipe diameter which use with pump for better water flow efficiency. Aquarium calculates tank dimensions for your rectangular fish tank in either centimeters or inches to both gallons and liters. This conversion can help you to determine appropriate tank population, and whether you have enough space for the fish you are planning on getting. When selecting the best filter and pump for your aquarium fish tank, you must consider: Which type of filtration system is most suited for the aquarium you want, what is the desired flow-rate for your aquarium livestock, what additional equipment will be set up, and what sort of plumbing will be installed. Starting with filtration, you will need to know: 1. The Volume of Your Aquarium Assume that your aquarium capacity is 100 litres. For the cleanest, healthiest tropical aquarium set-up, we recommend that all the water in the aquarium flows through the filter 4 times per hour. 100 x 4 = 400 This means that the preferred filter for your fish tank has a flow rate of at least 400 litres per hour. Your pump can only perform as well as your plumbing system allows it to. A common mistake contractors make is that they install pipe that is too small and blame the pump for not yielding enough power. Never size your plumbing based on the pump outlet rather always size your plumbing for the amount of water your pump is generating. Add new stock slowly! Your tank may support this many ultimately, but don't stock them all at once! Stock a few fish at a time, a week or more a part, to give the aquarium residents time to adjust and the biological waste processing bacteria time to expand to meet the new demand. Too many fish, even the "right" fish, can overload the natural bacteria that need time to become established. Thanks for your support and do visit nitrio.com for more apps for your iOS devices. ## Key features - Calculate water volume for square, rectangular, cylindrical, and hexagon aquariums - Determine water, sand, and surface area needs - Recommend fish stocking levels based on tank size - Suggest appropriate pump flow rate and pipe diameter - Convert dimensions between inches/cm and gallons/liters ## Chart rankings - #198 in Top Paid · Utilities (US App Store) ## Frequently asked questions about Aquarium Calculator Plus ### What is the price of Aquarium Calculator Plus? Aquarium Calculator Plus is a paid app priced at $2.99. This one-time purchase grants you access to all its features for calculating aquarium volumes and stocking levels. ### Does Aquarium Calculator Plus have ads? No, Aquarium Calculator Plus is ad-free. You can use all its features without any interruptions from advertisements, providing a clean user experience. ### What devices is Aquarium Calculator Plus compatible with? Aquarium Calculator Plus is designed for iOS devices, including iPhone, iPad, and iPod. It offers a convenient way to manage your aquarium calculations on the go. ### How often is Aquarium Calculator Plus updated? The app was last updated on November 11, 2025, indicating recent development and support. Users can expect ongoing improvements and feature additions. ### What age rating does Aquarium Calculator Plus have? Aquarium Calculator Plus has an age rating of 4+. This means it is suitable for users of all ages, making it accessible for younger aquarium enthusiasts as well. ### Can Aquarium Calculator Plus help me determine the right filter for my tank? Yes, Aquarium Calculator Plus can help you determine the right filter by calculating your aquarium's volume. It then uses this volume to recommend a pump flow rate, which is crucial for selecting an appropriately sized filter. ### How does Aquarium Calculator Plus help with fish stocking? Aquarium Calculator Plus recommends the amount of fish your aquarium can support based on its calculated volume and the sizes of the fish. This helps prevent overstocking and maintain a healthy environment for your aquatic life. ### What user feedback is available for Aquarium Calculator Plus? Aquarium Calculator Plus has a perfect rating of 5.0 stars from 1 review, indicating a highly positive user experience. Users appreciate its utility in managing aquarium parameters. ## Version history (last 2 releases) ### 1.1 — 2025-11-11 - Updated for the newest devices. - Minor bugs fixed. ### 1.0 — 2022-09-02 No release notes. ## Apps similar to Aquarium Calculator Plus | App | Rating | Price | Category | | --- | --- | --- | --- | | [WetMath: Aquarium Calculator](https://appshunter.io/ios/app/wetmath-aquarium-calculator/id6745920042) | — | Free | Utilities | | [Aquarium Planner AR](https://appshunter.io/ios/app/aquarium-planner-ar/id1290236851) | 1.8 (10) | $1.99 | Utilities | | [MOAI®](https://appshunter.io/ios/app/moai/id6443755461) | — | Free | Utilities | | [EDECOA](https://appshunter.io/ios/app/edecoa/id6480369289) | 5.0 (1) | Free | Utilities | | [Fish Tank Buddy](https://appshunter.io/ios/app/fish-tank-buddy/id6446954175) | 5.0 (1) | Free | Utilities | | [Reef Diary Aquarium Management](https://appshunter.io/ios/app/reef-diary-aquarium-management/id6746352304) | 1.0 (1) | Free | Utilities | ## More apps by Heng Jia Liang - [Time Lapse Plus](https://appshunter.io/ios/app/time-lapse-plus/id806506963) - [Stop Motion Plus](https://appshunter.io/ios/app/stop-motion-plus/id815531972) - [Bubble Photo Paint](https://appshunter.io/ios/app/bubble-photo-paint/id921345975) - [Photo Art Painter](https://appshunter.io/ios/app/photo-art-painter/id1037774115) - [Batch Image Resize](https://appshunter.io/ios/app/batch-image-resize/id1117282560) - [Dash Cam Plus](https://appshunter.io/ios/app/dash-cam-plus/id1130785852) All apps by Heng Jia Liang: https://appshunter.io/developer/1532000635 --- *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 2026-07-09.*