HEATER FOR AQUARIOPHISTIC: When using it, consider the ambient temperature, as well as the heat dissipation conditions, whether the aquarium is well sealed, etc. The recommended power is to choose large power. NO HARMFUL TO SMALL ANIMALS: The mini water heater is used to heat fish tank water and even turtle tank water. DRY BURN SAFETY PROTECTION: It is designed with anti-dry burn technology, easy to use. Constant temperature: Aquarium heaters design at 25°C, the temperature cannot be adjusted. Suction cup design: The suction cup design makes it easy to install the aquarium heater.