Aquarium Water Tracker - Reef

About this app

Stop guessing if your tank is healthy. Reef turns every water test into a clear picture of what your fish, coral, and invertebrates actually need. Log parameters, spot trends on charts, and catch problems before they cost you livestock. Built for every setup, from a nano reef on a desk to a fish room with a dozen freshwater and saltwater tanks. WATER PARAMETER TRACKING - Log pH, ammonia, nitrite, nitrate, temperature, salinity, calcium, alkalinity, magnesium, phosphate, and more - Color-coded indicators show green, yellow, or red so you see trouble at a glance - Ammonia and nitrite are held to strict safety thresholds, so a toxic reading always shows red - Trend charts over weeks, months, or years reveal slow drifts a single test hides - Overlay maintenance events on charts to see how water changes and dosing affect your parameters - Set custom ideal ranges for each tank type, whether reef, planted, or brackish LIVESTOCK MANAGEMENT - Track every fish, coral, invertebrate, and plant across all your tanks - Record purchases, quarantine dates, and health observations - Log losses with cause and date so patterns become visible - Compatibility checker covering 32 popular freshwater and saltwater species MAINTENANCE AND DOSING - Schedule recurring reminders for water changes, filter cleaning, dosing routines, and equipment checks - Log completed tasks with costs and notes - Full maintenance history with cost tracking per tank and per month - Swipe to mark tasks done right from the home screen MULTI-TANK DASHBOARD - Monitor every tank at a glance from one home screen - Tanks that need attention appear first - Recent activity feed across all tanks FREE TIER - 1 tank with up to 30 test logs - Full parameter trend charts with complete history - Full maintenance and livestock tracking - Maintenance statistics and cost tracking - Reminders for scheduled tasks - Compatibility checker PREMIUM UNLOCKS - Unlimited tanks - Unlimited test logs - Unlimited maintenance schedules Whether you keep a nano reef, a planted freshwater showcase, or a saltwater fish room, Reef keeps your parameters organized and your livestock thriving. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

The compatibility checker is now where you can actually find it, and it reads correctly. - The species compatibility checker is reachable from your tank list and from any tank's detail screen. It was previously unreachable. - Fixed an "Incompatible" result that rendered invisible, so a warning could be missed entirely. - Fixed five species pairs that could never be matched, so the checker returns a verdict where it previously came up empty. - Ammonia and nitrite warning thresholds now flag genuinely unsafe readings sooner. Existing tanks are migrated automatically. - Full dark mode support across every screen. - Fixed a crash that could occur on launch. - Species count in the description now reflects the real library. Thank you for the reports that led to these fixes.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 25, 2026 · 6:57 PM Free