The aquarium app that is actually right.

Aquiio checks “Can I add this fish?” against your tank, logs water tests against the right ranges, plans your maintenance and walks you through cycling and sick fish, with sources for every fact.

• 2,200+ species: fish, shrimp, snails, other invertebrates, amphibians, plants and corals, each fact with its sources
• Freshwater, brackish and reef tanks
• Can I add? compatibility with stocking before and after
• Water tests with target-range graphs, reminders, widgets and Siri
• Cycling wizard, Fix a problem, a health check that starts with your water, 53 calculators
• iPhone, iPad and Apple Watch
• No ads, no tracking, no account. Your data stays on your device and in your own iCloud.

Coming soon to the App Store.