Jengu M1 Smart Fish Tank, 18.9 L App-Controlled Betta Aquarium Kit

Jengu M1 is an app-controlled smart fish tank starter kit designed to simplify everyday fish care, with up to 5 gallons (18.9 L) of capacity and rimless 5 mm low-iron glass.

• Up to 5 gallons (18.9 L) of water and 900.6 in³ (14,758 cm³) of open swim space — room for a betta, a few guppies, shrimp, or snails.
• App control plus four offline lid buttons — adjust key aquarium settings with or without a network connection.
• Built-in automatic feeder — schedule meals and portion counts from your phone.
• Three-speed pump operating at 28 dB — choose water flow to suit different fish and keep operation quiet.
• Two-stage filtration and a temperature sensor with phone alerts — support water care and monitor temperature.
• Full-spectrum LED with seven lighting modes — illuminate fish and support live plants without a separate plant light.

For new fish keepers and busy households, the M1 brings feeding, lighting, water circulation, filtration, and temperature monitoring into one aquarium kit. Its controls and included setup guide are designed to make routine care more manageable at home, including when you are away.

What can I control from the app or the lid?

The Jengu app controls lighting, pump flow, feeding schedules, and the child lock over 2.4 GHz WiFi; 5 GHz WiFi is incompatible. Four physical buttons on the lid provide the same controls offline, with no network connection needed. The feeder also has a lid button for dispensing an instant snack while you are home.

• Set light brightness and a timer from the app.
• Use the child lock to restrict access to the controls.
• View the temperature on the lid display.

How does the automatic feeder work, and what food fits?

The built-in feeder schedules meals and lets you choose how many portions to dispense per feeding. Use pellets no larger than 2 mm in diameter for reliable dispensing. Its minimum portion is intended for small community fish; for a single betta, feed every other day rather than daily, since overfeeding can cause bloating or death.

• Feeding schedules are adjustable from your phone.
• The lid button dispenses a snack on demand.

How do the pump, filter, and temperature monitoring work?

The three-speed pump offers Low at 2 L/min (32 GPH), Medium at 3 L/min (48 GPH), and High at 4 L/min (63 GPH). Low flow is intended for bettas and shrimp, Medium for guppies and tetras, and High for goldfish or extra filtration. The pump runs at 28 dB, making it suitable for a bedroom or nightstand.

Mechanical filtration catches debris, while biological media supports beneficial bacteria that help keep the tank stable. The temperature sensor tracks water temperature and can send phone alerts if a reading is off.

• Replace the mechanical filter cartridge every 3 months.
• Replace biological media every 6 months; never rinse it with tap water.
• Clean the temperature probe monthly for best accuracy.

What comes with the Jengu M1, and what should I know about lighting?

The kit includes the glass tank, smart lid with automatic feeder and temperature display, full-spectrum LED, quiet pump, mechanical filter cartridge, biological filter media, drain tube, setup guide, and fish care card. The heater, substrate, decor, fish, and food are not included. Any adjustable heater works, and a Jengu 100W heater is compatible.

The rimless tank uses 5 mm low-iron glass for a clear view, and its locking sealed lid helps keep curious cats out. The LED has South American, Brook, White, Night, Sunlight, Flowing, and Aquarium modes; it supports live plants and brings out fish colors. A daily lighting period of 4–6 hours is recommended for healthy plant growth.

• Most people can set up the aquarium in under 30 minutes.
• The tank and mainboard have a 1-year warranty.

The Jengu M1 suits first-time fish keepers, betta enthusiasts, busy owners, and families introducing children to aquatic life; it can also serve as a housewarming gift. It is a compact starter aquarium for the fish types and care routines described above, with core controls, feeding, filtration, and lighting built into the kit.