Juwel Aquarium Heater – 50W

The Juwel Aquarium Heater 50W is a compact heater for small aquariums. It keeps the water at a stable, fish-friendly temperature, which helps tropical fish stay healthy and active, and its slim size makes it easy to position discreetly in smaller tanks.

Key features of the Juwel Aquarium Heater

• Aquarium heater
• Power: 50W
• Suits small aquariums
• Keeps a stable temperature

Sizing and setting up

A common rule of thumb is about 1 watt per litre in a room at normal household temperature, which puts this 50W heater at aquariums of roughly 50 litres; tanks in cool rooms or near outside walls may need more power. In Juwel aquariums with a built-in filter, the heater sits in its own compartment where filtered water flows past it, spreading the heat evenly. After installing it, let the heater adjust to the water temperature for about 15-20 minutes before switching on, then set the dial and check the actual temperature with a separate thermometer over the next day, adjusting in small steps. Most tropical community fish are comfortable at 24-26°C.

Good to know

Place the heater where water flows past it, and always unplug it before removing it from the water.

Product details

• Brand: Juwel
• Brand website: juwel-aquarium.de
• Product: Juwel Aquarium Heater – 50W
• Size: 50W
• Category: Fish Heating & Lighting