Aquarium Temperature Monitoring Dashboard

The default band is 24–27 °C for most tropical community fish (reef tanks ≈25–26 °C, tighter). Treat it as a sensible starting point — your own specification, regulator, equipment manual or product datasheet sets the authoritative limits, and you can read your true band straight off the worst case those documents allow. Edit the readings against whatever band applies to you.

Most tropical fish tolerate slow seasonal drift but are stressed by rapid daily swings greater than about 1–2 °C; reef invertebrates are fussier still. Heaters handle the common case (room cooler than tank); a chiller is needed only for sensitive reefs or hot climates where the tank exceeds the target. The real safeguard against the worst failure mode is a separate inline temperature controller that cuts heater power at a hard limit — the telemetry here tells you if you ever need it.

Match the interval to the consequence and the rate of change: where an excursion spoils product or risks safety, log continuously (or as often as you can sample); where it is merely informative, daily or per-shift spot checks suffice. The in-range % and excursion count only mean something if your sampling is regular — sparse, irregular readings hide the excursions between them.

Yes — every reading is stored in this browser's localStorage on your device and nothing is uploaded to any server, which also makes the dashboard usable on sites with strict data policies. For shared, audit-grade records across a team or for regulatory retention, export the values into your own system.