Heater for aquariums. Consistent temperature level. Ideal for continuous use due to high-quality construction. Patented control system allows for precise temperature adjustments (±3 °C). Perfect for submerged use. Heating function indicated by an activated control light. Includes mounting bracket, suitable for freshwater and saltwater. The quartz glass heater ensures a uniform temperature level in aquariums. The heater is well-made, easy to install, and can be used for continuous operation. The activated control light allows for easy monitoring of the heating function. The HeatUp heater is suitable for use in freshwater and saltwater aquariums.