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 GOLRISEN good for nitrifying bacteria reproduction

good for nitrifying bacteria reproduction which can help to improve water

supporting DNA

and other supplies that your pet fish needs

without compromising health and without serious side effects

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 GOLRISEN good for nitrifying bacteria reproductionFeatures: SUPER MINI SIZE This small aquarium heater is thumb size only 1. 97 (5cm) in length. Great for nano tanks betta tanks. The innovative super mini size perfectly solves the headache of the fish keepers on the traditional heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64 93F, for up to 1 Gallon tanks. 5V 2A USB POWER SUPPLY This 5V 2A USB power supply is very safe. You are away from the worry of electric