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
