Marina Betta Heater is a submersible heater that creates ideal water conditions for bettas to thrive in. The exterior is made of durable polymer, which is more resilient than traditional glass sleeve heaters. The heater is designed for no manual adjustments. It has a red indicator light that illuminates when the heater is working. It comes with a suction cup, so you can easily install it against the aquarium window, for aquariums up to 5 litres (1.5 US Gal). Key Features: Submersible aquarium heater Creates ideal conditions for bettas to thrive in Made of durable polymer, tougher than glass Easy to install using suction cups For aquariums up to 5 litres (1.5 US Gal) 8 Watts

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The most technologically advanced aquarium heater available today, Fluval E Series Advanced Electronic Heater with VueTech technology delivers peace of mind thanks to several excellent features. Equipped with an intelligent digital microprocessor monitoring system with dual temperature sensors, this heater continuously monitors and displays aquarium water temperature, ensuring the safety and well-being of your aquarium inhabitants.              Key Features : Continuously monitors and displays aquarium water temperature in real time Intelligent digital microprocessor monitoring system with dual temperature sensors Ensures the safety and well-being of your aquarium inhabitants Precision temperature control allows settings in 0.5-degree increments Integrated fish guard provides advanced protection Slim profile mounting bracket For fresh and saltwater aquariums

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