Running cost estimate
Enter each device's wattage and how many hours it runs per day. For heaters, use the heater wattage and an estimated daily on-time.
Actual use can vary. Heaters cycle, smart lights dim, and pumps may draw different wattage at different flow settings.
What affects fish tank electricity cost?
Aquarium running cost is mainly wattage multiplied by runtime. Filters and air pumps often run 24 hours per day, lights usually run 6 to 10 hours, and heaters cycle based on room temperature. A lid, stable room temperature, efficient lighting, and a timer can reduce unnecessary electricity use.
Aquarium electricity FAQ
How much electricity does an aquarium use?
It depends on equipment wattage and runtime. A small freshwater tank may use little power, while a large heated planted aquarium with strong lighting can cost much more each month.
Does an aquarium heater use full wattage all day?
No. Most heaters switch on and off. Use estimated on-time per day rather than 24 hours unless the room is very cold or the heater is undersized.
How can I reduce aquarium electricity cost?
Use timers, efficient LED lighting, a lid when appropriate, stable room temperature, and correctly sized equipment. Do not reduce filtration below what the livestock needs.