Feature
Aquarium temperature alarm
A broken heater or a heatwave can kill your fish within hours. The monitor sends an alarm to your phone when the temperature leaves the range and warns you earlier when it sees a worrying trend.
Threshold and trend
You set the temperature range for your tank. Besides the alarm when a limit is crossed, the monitor calculates the trend over the last hours and warns you if, at the current rate, the temperature will leave the range. A heater stuck on shows up before the water overheats.
Where the notification goes
- notification in the Android app,
- Telegram,
- Home Assistant over MQTT.
Every alarm comes with short instructions on what to do, also for a pet sitter while you are away.
No false alarms during water changes
Maintenance mode silences alarms while you work in the tank, and when it ends you get a summary of anything that needs attention.
Frequently asked questions
What temperature is safe in an aquarium?
For most tropical fish 24–27 °C (75–81 °F). You set the range in the app to suit your fish.
What should I do when an overheating alarm arrives?
Switch off the heater and the lights, remove the lid and point a fan at the water surface. Do not add a lot of cold water at once: lower the temperature gradually, by 1–2 °C (2–4 °F) per hour.
Keep an eye on your tank from your phone
The app is free and ad-free. The monitor runs on your Raspberry Pi.