How to connect the Xiaomi aquarium to the phone: full instructions

The integration of smart devices into the Mi Home ecosystem makes routine fish care a high-tech process that allows you to control water parameters and feeding remotely. However, the initial setup of the Mijia Smart Fish Tank often raises questions for users facing the peculiarities of the Chinese market and the specifics of communication protocols. The correct sequence of actions during the installation phase will eliminate the need to reset and reconnect equipment in the future.

To get started, you’ll need a stable internet connection and a smartphone with the Mi Home app installed (or Yeelight, depending on the model).It’s important to understand that most Xiaomi devices, including aquarium systems, only work in the 2.4GHz band, which is a critical parameter for successful pairing. Ignoring this requirement is the most common reason why the gadget doesn’t appear on the list available for addition.

In this article, we will not only break down the standard connection algorithm, but also touch on the nuances of choosing a region, setting up automations and eliminating typical communication errors. You will learn how to properly link a device to an account to control lighting and temperature from anywhere in the world.

Preparation of equipment and software

Before starting the synchronization procedure, make sure that all components of the system are working and ready for operation. Make sure that the aquarium is connected to the power supply via the original power supply, and the water level meets the minimum requirements for the operation of the sensors. Lack of water can lead to overheating of the heating element or incorrect readings of the sensors, which will block the activation process.

On the mobile side, operating system pre-preparation is required. For Android smartphones, it is critical to give the Mi Home app extended geolocation, Bluetooth, and LAN access rights. Without location permissions, the operating system simply won’t allow the app to scan for new devices, even if they are in close proximity.

⚠️ Warning: Do not try to connect the aquarium if your router uses Guest Network mode or customer isolation (AP Isolation, as it prevents data exchange between a smartphone and a smart device.

Also check the operating system version of your smartphone. Modern aquarium management plugins require current versions of iOS (at least 12.0) or Android (at least 6.0) to work smoothly.Oddware may not support the necessary cryptographic encryption protocols used to transfer Wi-Fi passwords.

Selecting the Right Region in the Mi Home App

One of the most important steps is choosing the server to which the device will be attached. Xiaomi smart aquariums are often released in versions for the domestic market of China, so for their proper operation, the region in the application must be set to China (China). If you choose Russia or Europe, the application may simply not see the device when scanning.

The region change affects the list of available devices and server response speed. After switching to China, devices that were previously hidden may appear in the main menu, but it is worth considering that some functions that depend on the voice assistant may not work correctly or require a separate language setting.

If you plan to use a device purchased in your country’s official retail, try installing the appropriate region first. In rare cases, global versions of aquariums require a choice of Europe or Russia region, but statistically, most models, such as the Mijia Fish Tank 1S, run more stable on Chinese servers.

📊 Which region you chose in Mi Home to connect the aquarium?
China (China)
Russia
Europe
USA
I don't know / I didn't change.

Step-by-step instructions for connecting to Wi-Fi

The pairing process is triggered through the app interface after you click the add-on button. The system will offer several ways to search: automatic scanning, Bluetooth search or manual selection from the catalog. For Xiaomi aquariums, the most reliable method is to manually select a model from the list of Small Household Appliances or Pet Care, which ensures that the correct control plugin is downloaded.

Once the model is selected, the application will move to the step of entering a password from the Wi-Fi network. Make sure you enter a password from the 2.4 GHz network, and not from the guest network or 5 GHz network. The password must be entered without errors, taking into account the register of characters, since the aquarium does not have a screen for visual correction of the entered data.

☑️ Checklist before connection

Done: 0 / 5

When the data is entered, the configuration transfer process will begin. At this stage, the indicator in the aquarium usually starts to flash, signaling the pairing mode. Do not move the smartphone far from the device at this point, since the Bluetooth signal used for the initial transmission of encryption keys has a limited range.

⚠️ Warning: If the indicator flashes too fast or lights up red, it may mean a connection error to the router – check the password and signal strength at the aquarium installation site.

The final step is to name the device and select the room, and it's recommended that you give clear names like Living Room Aquarium to make it easier to operate through voice assistants or automation scenarios in the future, and once you add it successfully, you'll see a control panel with temperature sliders and light sliders.

Setting up scenarios and automation

The main advantage of a smart aquarium is that it can create complex scenarios that mimic natural light cycles, so you can set up automatic lighting in the morning and smooth attenuation in the evening, which has a beneficial effect on fish and plant health, using the Scenarios or Automation tab in the plugin interface.

In addition to light scenes, you can adjust the temperature regime. Although the aquarium itself maintains a set temperature, integration with other smart home devices allows, for example, to turn off the lights in the room if the water temperature exceeds a critical point, or send a notification to the phone, which creates an additional level of security for the inhabitants.

How to create a “Night” scenario for an aquarium?
To create a Night scenario, go to Scenarios → Create. Under the condition, select Time (e.g. 22:00). In action, select your Aquarium device → Turn off the lights or Set the brightness to 0%. Save the script. Now the lights will go out automatically every evening.

Use of pre-made presets like Tropics or Dawn are also available in the app.These modes change color temperature and light intensity throughout the day, providing optimal conditions for plant photosynthesis. Experiment with settings to find a balance that your fish will like.

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Automation allows you to create the perfect biorhythm for fish without your constant involvement, simulating the natural cycle of day and night.

Table of main parameters and characteristics

To understand your device’s capabilities and adjust the app’s thresholds correctly, check out the specifications that are normally available for monitoring, which can help diagnose connection or hardware problems.

ParameterValue/RangeImpact on connection
Wi-Fi frequency2.4 GHz (802.11 b/g/n)Critical: 5GHz is not supported
Max, distance.up to 10-15 meters (from the router)Weak signal interrupts communication
Consumptionup to 25 watts (with heating and light)Requires a stable voltage
Temperature range18°C - 32°CSensor calibrated at launch

Understanding these limitations will help avoid situations where the device falls off the grid, for example, if the aquarium is in the far corner of the room behind a thick wall, the signal may be unstable, which will lead to loss of control, in which case it is recommended to use a Wi-Fi repeater.

Solving Typical Connection Problems

The most common problem is when an aquarium is found but not connected to the network, often because the router assigns the device. IP-Address from a pool that conflicts with other devices, or with router security settings. Try rebooting the router and aquarium at the same time to update leases DHCP.

Another common error is “Device is occupied,” which means that the aquarium is already tied to another Mi Home account. To solve the problem, you need to perform a factory reset, usually done for a long time (5-10 seconds) by pressing the reset button on the case or through a combination of buttons specified in the instructions for a specific Xiaomi model.

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If the aquarium doesn’t connect, try handing out Wi-Fi from another smartphone (Access Point Mode) with a network name and password identical to your home network, but without special symbols, which will help isolate the router problem.

It's also worth checking if your antivirus or firewall on your phone is blocking local connections. Sometimes smart security guards consider the password transfer process a suspicious activity. VPN At the time of the adjustment is also a mandatory step.

Firmware update and maintenance

Once successfully connected, the app may suggest updating the device's firmware, which is strongly recommended immediately, as new versions of the software often contain corrections for communication protocol errors and improve the stability of the temperature sensor.

Regular maintenance includes not only cleaning the glass, but also checking the status of the device in the application, where you can see the lamp and heater operating times, which helps plan replacement of consumables. A smart aquarium will remind you to change the filter or clean if the model supports such sensors.

⚠️ Warning: Never interrupt the firmware update process by turning off power – this can lead to a “bricking” of the controller and complete loss of control.

Timely updates and proper care ensure long-term service of your smart aquarium and stable operation of all remote control functions.

What to do if the firmware is not installed?
If the update is suspended on 99%, Don't panic. Leave the aquarium on. 15-20 And it's often in the background, and if nothing changes, reset and try to reconnect.

Questions and Answers (FAQ)

Can you manage a Xiaomi aquarium without the Internet?
Local control is only possible if your phone and aquarium are on the same Wi-Fi network and you have previously successfully configured the device. However, for initial activation, configuration of scripts and remote access, the Internet is mandatory. Without the Internet, the functionality is reduced to the minimum supported by the local protocol, unless it is blocked by the manufacturer.
Why can't the aquarium see the 5GHz network?
The Wi-Fi module installed in Xiaomi aquariums physically supports only 802.11 b/g/n, which operates at 2.4 GHz. This is standard practice for IoT devices, as these frequencies penetrate walls better and have a longer range, which is more important than high data rate for simple commands.
How to reset the aquarium if I forgot my Wi-Fi password?
You don't have to reset the aquarium itself. You just have to log in to your router's settings and change the Wi-Fi password to the one you used in the initial setup, or reconfigure the router. If that's not possible, you'll have to reset the aquarium (Reset button) and reconfigure it with the new network data.
Is the aquarium compatible with Google Home or Alice?
Direct compatibility varies by account region and model. Through aggregator services (e.g., Yandex.Smart Home with a bundle through Xiaomi account), management is often available. However, native support for Google Home for Chinese versions of devices may be absent or require complex workarounds through Home Assistant.
Is it safe to leave the aquarium plugged in constantly?
Yes, Xiaomi’s smart aquariums are designed to work around the clock, have overheating protection and work “dry” (though the latter is better not to check). However, to save energy and extend the life of the lamp, using timers and scenarios for turning off lights in the application is a more correct approach.