Log all 10 reef parameters, get instant status feedback calibrated to your tank type, and track trends before they become disasters.
No spreadsheets. No guessing. Just clear data and smart status alerts.
Alk, Calcium, Magnesium, Phosphate, Nitrate, Temperature, Salinity, pH, Ammonia, and Nitrite — the complete picture, all in one place.
Every reading is checked against reef-safe thresholds calibrated to your specific tank type. Critical deviations surface immediately.
Every reading is timestamped and stored forever. Filter by parameter, tank, or date range to spot trends before they become problems.
Interactive charts for every parameter with configurable time windows — 24 h, 7 days, 30 days. See the direction your tank is heading.
Override thresholds per tank if you run an unconventional system. Your reef, your rules — backed by smart defaults for every tank type.
Run multiple tanks? Track each one independently. Set a favourite for your dashboard and switch between them with a single tap.
Track all the chemistry that keeps your corals, fish, and inverts thriving — from the Big Three to the ones most apps forget.
ReefStat compares every reading against a four-level status system tuned to your tank type. SPS tanks get tighter thresholds. FOWLR tanks get more tolerance. No more one-size-fits-all alerts.
Pick your tank type and get threshold profiles that match how demanding your livestock actually is.
The most demanding reef type. Pristine chemistry is non-negotiable — tight thresholds keep your Acros and Montis happy.
Moderate parameters that work for most corals. The most popular setup — ReefStat's sweet-spot profile.
Hardy and forgiving. LPS corals tolerate wider swings — wider acceptable ranges let you relax a little.
Beginner-friendly and resilient. Ideal if you're new to reef keeping — broad tolerances with sensible defaults.
High nutrient tolerance, no coral chemistry constraints. Fish-focused ranges without the coral chemistry headache.
Define every threshold yourself. Perfect for experimental systems or keepers who know exactly where they want their parameters.
No setup complexity. Just create your tank, log your first reading, and go.
Add your tank, pick its type, and ReefStat loads a complete threshold profile for you.
Enter your test results. ReefStat checks each one instantly and flags anything that needs attention.
Over time, charts and history let you see exactly where your tank drifts — and fix it before your corals feel it.
Join ReefStat and start logging today. No credit card, no subscriptions — just your reef data, organised and smart.