How to Build a Xiaomi Aquarium: A Complete Guide from Unpacking to Launch

Xiaomi Mi Aquarium is not just a decor element, but a smart device that combines aesthetics and modern technology. Unlike traditional aquariums, Xiaomi models (such as Mi Smart Fish Tank or Yeelight Aquarium) are equipped with automated systems for monitoring temperature, lighting and even feeding fish through a mobile application. However, even the most “smart” equipment requires proper assembly and preparation – this depends on the health of your pets and the durability of equipment.

In this article, we will discuss the process of assembling an aquarium from unpacking to the first launch, taking into account the features of Xiaomi models, learn how to avoid typical errors (for example, improper installation of the filter or overheating of the water), what tools you will need, and how to synchronize the aquarium with the Mi Home ecosystem.

If you are new to aquarism, don’t worry: the manual is adapted for users without experience. For owners of other smart aquariums (for example, Cuboid or AquaEl Smart>), many principles will also be useful, but we will focus on solutions from Xiaomi.

1. Xiaomi aquarium kit: what should be in the box

Depending on the model (Mi Smart Fish Tank 16L, Yeelight Aquarium 30L or others), the kit may differ, but the base kit usually includes:

• 📦 Aquarium itself (glass or acrylic case with lid)
• 💡 LED backlight with power supply (often supports RGB and control via Mi Home)
• 🌀 Internal or external filter (Xiaomi models often use a compact filter with a sponge and carbon filler)
• 🔥 Heater with thermostat (in some sets it is separately)
• 📱 Instructions in Chinese/English (Russian version may not be available)
• 🔌 Power cables and adapters (note voltage – some models require 220V, others 110V)

The lack of at least one element is an excuse to contact the seller, especially the filter and heater: without them, you can not start the aquarium. Also check the integrity of the glass - even microcracks can lead to leaks.

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If the thermometer is not included, buy it separately.The sensors in Xiaomi heaters sometimes give an error of up to ±2°C, which is dangerous for tropical fish.

Yeelight Aquarium models can also have an automatic feeder and water level sensor, so if you bought a used aquarium, make sure that the previous owner did not remove important parts (for example, sealing rubber pads on the lid).

2.Preparation of the place: where to install the aquarium Xiaomi

Choosing a location is 50% of the success. Xiaomi's aquariums are compact but have strict environmental requirements:

• 🪑 Smooth surface: Even a slight skew can cause cracks. Use the building layer.
• 🔌 Access to sockets: A minimum of 3 sockets (preferably grounded) will be required for lighting, filtering and heater.
• ☀️ Lack of direct sunlight: They cause water to bloom and overheat.
• 📶 Wi-Fi coverage area: Smart functions require a stable 2.4 GHz network (5 GHz not supported!).

Avoid areas near batteries, cookers or air conditioners - temperature changes are harmful to fish. The optimal height of the installation is 80-120 cm from the floor (for ease of care).

For models with a volume of 30 liters (for example, Mi Smart Fish Tank 30L) will require a cabinet with a margin of safety of at least 50 kg. The aquarium weighs much more than it seems: 1 liter of water = 1 kg + the weight of glass and equipment.

3. Step-by-step assembly of Xiaomi aquarium

Now, to the process itself, follow the instructions in strict order, and this will help to avoid leaks and equipment breakdowns.

Step 1: Installation of the housing and check of leakage

Carefully remove the aquarium from the box, holding it at the bottom (not by the edges!). Wash the inner walls with warm water without detergents - residues of chemistry can kill fish.

• Integrity of silicone seams (they should be smooth, without tears).
• The presence of sealing rubber on the cover (if any).
• No chips on the glass.

Set the aquarium in a prepared place and fill it with water 1/3 to check the leakage. Leave for 1-2 hours - if there are no leaks, you can continue.

Step 2: Installation of equipment

Connect the filter and heater before filling the aquarium with water. In Xiaomi models, the filter is usually attached to the suction cups to the back wall. Place the heater closer to the filter for even distribution of heat.

The filter is fully submerged in water | The heater is vertical |Lighting is connected to the power supply |All cables are out of the aquarium-->

Warning: Do not turn on the heater without water, this will cause it to burn out, and avoid contact of the heating element with glass (minimum distance is 2 cm).

Step 3: Connecting Lighting and Smart Functions

The LED backlight in Xiaomi aquariums is often controlled via the Mi Home app.

1. Download the app and create an account (link to China Mainland for full functionality).
2. Add the device through Add the device → Aquarium.
3. Connect the light to Wi-Fi (2.4 GHz! only).
4. Set up a lighting schedule (optimally: 8-10 hours a day).

Some models, like the Yeelight Aquarium, have lighting scenarios like "Tropical Dawn," "Deep Blue," and others. Don't use bright white light around the clock, which is stressful for fish.

4 First Start: How to Avoid Errors

Starting an aquarium is a critical step, and many newcomers make the same mistake of settling in fish immediately after pouring water. It's deadly! There are no good bacteria in the new water, and the fish will be poisoned by ammonia.

The correct algorithm:

1. Pouring water: Use either settled (at least 24 hours) or bottled water. Tap water contains chlorine.
2. Temperature setting: for most tropical fishes – 24-26 ° C. In the Mi Home application you can set automatic temperature maintenance.
3. Start the filter: it should work around the clock. The first 2-3 days the water can be cloudy - this is normal (bacteria multiply).
4. Nitrogen cycle: Add the starting bacteria (e.g. Tetra SafeStart) and wait 1-2 weeks before settling the fish.

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The first fish should be hardy, and the best choice to start with is guppies, zebrafish, or swordtails, and they'll help stabilize the ecosystem.

Do not add all the fish at once - start 2-3 individuals at intervals per week. Also avoid overfeeding: in the first days, feed the fish once a day in minimum portions.

5. Set up smart features through Mi Home

Xiaomi Aquariums are integrated into the smart home ecosystem, allowing remote management, and once connected to the Mi Home app, features will be available:

For advanced users, integration with Google Assistant or Alice from Yandex is available, for example, you can turn on the backlight or check the water temperature with your voice.

Important: Once the aquarium firmware updates (if available), the smart features may reset. Always check the settings after the updates.

Typical problems and their solutions

Even with proper assembly, there can be difficulties, and here are the most common ways to eliminate them:

• 🌡️ The heater doesn't keep the temperature: check if it's fully submerged in water. If the problem persists, calibrate the sensor through the app.
• 💧 Water leakage: Most often, a loosely closed lid or a damaged seal is to blame. Dry the aquarium and check all joints.
• 🔄 The filter is making noise or vibrating: maybe air has entered the filter. Turn off the filter, rinse the sponge and restart.
• 📵 Not connected to Wi-Fi: Restart your router and make sure the network is running at 2.4 GHz. In some cases, changing the region to Mi Home to China helps.

If Xiaomi aquarium has stopped responding to commands from the app, try:

1. Reset the light supply.
2. Remove the device from Mi Home and add it again.
3. Update the firmware through the device settings → Update.

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If fish become lethargic, test the water with tests for ammonia (NH₃) and nitrites (NO₂. In new aquariums, levels can be dangerously high in the first weeks.

7. Care and maintenance: extending the life of the aquarium

Regular maintenance is essential to the health of fish and the durability of equipment, and minimum care includes:

• 🧽 Glass cleaning: 1 time a week with a special scraper (do not use household chemicals!).
• 🌀 Filter flushing: rinse the filter sponge in the drained aquarium water every 2 weeks (not under the tap!).
• 💧 Water change: Replace 10-15% of water with fresh water every week.
• 🌱 Plant trimming: If there are live plants in the aquarium, remove the yellowed leaves.

For smart aquariums, Xiaomi is also important:

• Once a month, check the tightness of the sensors (especially if they are submersible).
• Update the firmware via Mi Home (newer versions often fix temperature control bugs).
• Periodically calibrate the sensors (in the device menu in the application).

If you are away for a long time, use the "Vacation" mode in Mi Home: it will reduce the intensity of lighting and feeding, but will support the basic parameters.

FAQ: Frequent questions about the assembly of the aquarium Xiaomi