PAIZOO Aquarium Chiller Fan with Auto Temperature Control, LCD Probe and 3 Fan Modes

The PAIZOO Aquarium Chiller Fan is an automatically controlled aquarium cooling fan with an immersed temperature probe and LCD screen, designed to help manage tank temperature for tropical fish and sensitive corals.

• 6.4W dual-fan design — moves air across the aquarium using two fans.
• Three selectable fan modes — choose soft, standard, or strong airflow.
• 45° adjustable air outlet — direct airflow toward the area that needs coverage.
• Cooling support for tanks up to 20 gallons — use two or more fans for aquariums over 20 gallons.
• Includes a temperature probe, USB charging cable, and user’s manual — the main operating accessories come in the package.

Warm aquarium water can be a concern for tropical fish and sensitive corals. PAIZOO’s fan is made to help manage tank temperature through directed airflow and automatic switching, so it can respond as water temperature changes. Use its temperature display to monitor the tank and select a fan mode to suit the conditions and time of day.

How does the aquarium fan monitor and respond to temperature?

The immersed probe measures the water temperature, and the LCD shows the reading in real time. Set the operating temperature between 50°F and 99°F (10°C and 37.2°C); the fan switches on when water temperature rises above the preset level and switches off when it falls below it. For the fan to start, the set temperature must be 1°C/1°F lower than the temperature measured by the probe.

• The probe measures directly in the water.
• The LCD provides an at-a-glance tank temperature reading.

What airflow and cooling coverage does it provide?

The 6.4W dual fans use pure copper motors, and the concentrated vent design is intended to cool faster than traditional fans. The outlet adjusts through 45° to help aim airflow. For a tank larger than 20 gallons, PAIZOO recommends using two or more fans for a more noticeable cooling effect.

• Soft mode is suited to quieter nighttime use.
• Standard mode is designed for everyday operation; strong mode is available when faster cooling is needed.
• The fan can be combined with chillers or air conditioning during summer heatwaves.

Which fan mode should I use?

Choose among soft, standard, and strong mode with a single press. Soft mode is intended for nighttime serenity, standard mode suits use at any time, and strong mode is available when you want to cool the aquarium quickly. The mode options let you adjust fan operation to your needs.

• Switch modes with one press.
• Adjust the outlet angle to direct airflow across the tank.

What is included, and how large is the fan?

The package contains one PAIZOO aquarium chiller fan, one temperature probe, one USB charging cable, and one user’s manual. The fan measures 8.5 × 3.7 × 1.3 inches (21.6 × 9.4 × 3.3 cm); the probe cable is 80 cm (31.5 inches) long and the USB cable is 140 cm (55.12 inches) long.

• The probe cable connects the water-reading probe to the fan.
• The USB cable is included for powering the unit.

This fan is suited to aquarium keepers who want an at-a-glance water-temperature reading and automatic fan operation, particularly for tanks within its stated capacity. For aquariums over 20 gallons, plan on using two or more fans; its immersed probe, adjustable outlet, and three operating modes provide defined ways to monitor and direct cooling airflow.