Inside the app
A closer look.
About this app
Made for a clear purpose.
Reefstoich: Reef Chemistry is a local reef-chemistry bench for alkalinity, calcium, magnesium, salinity, and dosing-plan calculations with transparent units.
KEY FEATURES - User-defined product-effect dosing math - Alkalinity target and staged-correction plan - Actual water-volume control - Daily consumption and maintenance estimate - Test-history records beside every plan - Editable observations plus CSV import - Conservative scenario comparison - Local PDF analysis packet - Forty original offline reef-chemistry plates
ONE-TIME AND PRIVATE - One paid download; no subscription or in-app purchase - No account, advertising, analytics, tracking, or developer-operated backend - Core tools and bundled reference material work offline - Work remains on device unless you deliberately import, share, or export through an Apple system interface
Test water with reliable methods and make gradual changes. Calculations do not replace product instructions, livestock observation, or experienced aquarium guidance.
