AquaMiracle Adjustable 10W Betta Heater Small Aquarium Heater Submersible Fish Tank Heater 5V/2A USB Powered Super Mini Aquarium Heater with Digital Display Thermostat, for up to 1 Gallon Tanks

For nano aquariums, size of heater is always the headache for fish keepers as it takes up too much space.

Our Super Mini Heater innovatively and perfectly solves this problem.

This heater might be the smallest in the market.

Compact in size, but fully powered for heating.

Your aquatic creatures will be happier to live with this tiny thing.