Inhouse product
An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. Most tropical freshwater and marine aquariums are maintained at temperatures that range from 22-30 °C (71-86 °F). … There are also heating mats that may be placed under the aquarium.sunmersible aquarium heates are one of the most popular way to keep your tank at a steady and controlled temperature.