A heater is a must for every aquarium and helps you to adjust the temperature for your fish. Our Juwel Aqua Heat control heater reliably and safely ensures the right temperature in your aquarium. Depending on the room temperature and the size of the aquarium, you can achieve a water temperature of approx. 28 degrees Celsius with the Juwel heater. Thanks to the use of high-quality contacts and heat-resistant and impact-resistant borosilicate glass (safety glass), the JUWEL regulating heaters fulfil the highest demands in terms of function and safety and are of course TÜV/GS certified. In the Rio, Vision, Trigon, Lido and Rekord models, the heater is concealed in the filter housing and optimally integrated into the water circuit of the Bioflow filter system. This ensures even and efficient heat distribution in your aquarium.