Hygger Mini Fish Tank Heater for 1-5 Gallon Betta Aquarium with Digital Display

Product Description: hygger Mini Aquarium Submersible Heater

At A GLANCE: - External Temperature Controller - Beep Alarm, Fault Prompt

Immersion Aquarium Heater - Precautions Before Use:

Warm Tips 1: Ensure the fish tank heater is fully submerged in water and the water level is sufficient.

Warm Tips 2: Position the heater rod slightly near the filter intake for even water circulation.

Warm Tips 3: Unplug the power supply before water changes to avoid melt as dry burning.

Warm Tips 4: Unplug and let the heater cool for at least 10 minutes before removing it from the water.

Warm Tips 5: Avoid having the heater come in contact with gravel/substrate to prevent cracking.

【Beep Alarm, Fault Prompt】 The nano aquarium heater has safety features such as low water level shutdown and overheat protection. When the temperature control system detects a malfunction, it will give an error code alarm and stop heating to prevent potential damage or injury. Note: Although the system will automatically turn off the power when a malfunction occurs, residual heat in the heating rod may melt the shell. Please handle it as soon as possible.

【Black Look & Mini Size To Hide Easily】 The 20-watt Betta heater with a 4" long x 1" height heating element design takes up very little space, making it suitable for 1~5 gallon small aquariums and shallow water turtle tanks.

【Adjustable Temperature Control】 The hygger mini submersible heater includes an external thermostatic temperature controller, allowing you to easily set the temperature between 59 and 93 degrees. The digital display provides intuitive viewing of real-time water temperature. An indicator light will tell you whether the heater is in heating mode or standby.

【Intelligent Automated Heating】 This small fish tank heater effectively maintains the water at a steady temperature. When the temperature drops below the set point, it turns on, and when it reaches the desired temperature, it turns off. The memory function ensures you don't have to reset the temperature after power outages.

【Safety Instruction】 Keep the heating rod fully submerged and use the two suction cups to install the heater vertically or horizontally on the tank wall. Unplug the heater before water changes or cleaning, and allow it to cool down for 15 minutes.

product information: