Nano Heater 25W

The Nano Heater 25W steps up from fixed-preset designs by offering a user-adjustable thermostat dial, making it suitable for species that require temperatures above the typical 26°C preset — such as discus fry, certain killifish, and warm-water shrimp varieties.

At 25 watts its output is meaningful enough to compensate for modest heat loss in slightly larger nano tanks up to 20 litres, or to maintain elevated temperatures in 10-litre setups during cooler months. The slim borosilicate glass body and single suction cup bracket keep the visual impact on the aquascape minimal.

The integrated indicator light confirms active heating, and the dial allows temperature selection from approximately 20°C to 32°C. A reliable, affordable primary heater for nano aquariums where basic manual control is sufficient.