The reference software for dedicated seawater aquarists

now also for macOS

Aquarium documentation
Manage any number of aquariums.

Document your water values ​​in graphic and tabular form.
Capture pictures and comments to document the evolution of your pelvis.
Look at the evolution of your water levels over time

animal management
Manage your animals and keep track.

All comments and pictures can be assigned to animals

salt calculation
Calculate the amount of salt actually needed to change water or adjust the salt content of almost all available sea salt mixtures.

Adaptation calcium / alkalinity / magnesium
Calculator for the adaptation of calcium / alkalinity / magnesium: Expensive special agents are passé. Aqua Calculator calculates the exact dosing quantities and stock solutions required for the adjustment of calcium, alkalinity (KH) and Mg concentration of low-cost salts.
Recipes from Aquafair, Aquaforest, Coral-Care, Fauna Marin, MT Aquaristics, Nyos, H.W. Balling, Price Aquaristics, A.Glaser, Red Sea, Sangokai, Tropic Marin and self-defined

Addition of nutrients (nitrate and phosphate)

Convert all required quantities of the MW aquarium (eg salinity - density - conductance)

Read the built-in mini-FAQs to get a better grip on your pelvis.

To use the AquaCalculator you must have a valid subscription. This will enable you to take full advantage of the Aquacalculator, benefit from regular updates and enhancements, secure data storage, and syncing your data with other devices. Without a valid subscription, you can only read but not change your data.
The term is one year.
Payment will be made through your iTunes account.
The subscription will automatically renew if it is not canceled 24 hours before the end of the current period.
Within 24 hours before the end of the current period, the amount for the renewal will be charged.
Termination of automatic renewal is possible at any time.

What's New

Version 3.0.14



Michel Mohrmann
17.1 MB
English, Dutch, German
Age Rating
Rated 4+
© 2018 Michel Mohrmann


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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