Aqua One Glass Nano Betta Preset 26c Heater

The Aqua One Glass Nano Betta Preset Heater is a compact and reliable solution for smaller aquariums, preset to maintain your tank at a stable 25 °C (±1 °C). Ideal for Betta, tropical, or marine nano tanks, this durable glass heater is designed for simplicity and safety.

Available in three wattage options to suit your aquarium size:

• 10 W heater (approx. 12–12.5 cm in length) for tanks up to 8 L

• 25 W heater (approx. 14–14.8 cm) for tanks up to 20 L

• 50 W heater (approx. 16–16.5 cm) for tanks up to 40 L

Each preset heater is easy to install—just place it in the tank and plug in. The oil-free glass construction is durable and suitable for both freshwater and marine use. With a preset temperature and robust build, this heater offers peace of mind and consistent aquatic comfort.

• Preset thermostat maintains 25 °C (±1 °C)

• Available in 10 W, 25 W, and 50 W for different tank sizes

• Durable, fully submersible glass body

• Safe for Betta, freshwater, tropical, and marine tanks

• Easy to set up and maintain