For the registered small AC aquarium air pump, the rated running input is 3 W (range 1.5–4.5 W). Use this range only as a preliminary estimate of the steady operating load. The 3 W value is the dataset’s planning midpoint, not a measured market average or a specification for every pump.
Starting-watt status: not published: read the nameplate (LRA is not starting watts). Unknown starting demand is not zero. Because this value is unavailable, the lookup cannot provide a one-appliance generator-size result. Check the electrical label or manual for your exact pump—or the AC input label on its adapter—to obtain a model-specific running value and any explicitly stated startup requirement.
What this lookup includes
This lookup covers one small aquarium air pump operating from AC power. The registered variant is 120 V. Its 1.5–4.5 W planning range combines US Tetra Whisper listings rated at 1.5 W and 2.9 W with Tetra APS listings rated at 2.0–4.5 W from a 230 V market. The 230 V listings are from another supply market and should not be treated as specifications for a particular 120 V US pump.
The range has low confidence for model-specific use because it combines different models and supply markets. It does not cover every pump size, airflow setting, control setting, or operating condition. Prefer the rated input on your pump’s label or in its manual whenever available.
A 12 V DC pump is outside this lookup. Do not treat its 12 V DC rating as a direct generator load. For that setup, you would need the AC input rating of the adapter or other conversion equipment supplying the pump. This page does not calculate that conversion path.
Why there is no generator-size result yet
A generator must support both the pump’s steady running load and any higher demand when its motor starts. The running range gives us only the steady-load portion of that check. Because the reviewed data does not supply starting watts, the decisive startup constraint remains unknown.
The tool therefore cannot confirm startup compatibility or recommend the required running-and-starting generator capability for this pump alone. Do not enter zero for starting watts merely because no value was published.
You can still use the running value as a planning input for the pump’s steady load when listing equipment that must operate at the same time. Keep essential loads, such as an air pump that must remain powered, separate from optional loads that can be turned off or used later. A complete generator plan must also account for the running and startup requirements of the other connected equipment.
Running watts are not daily energy use
Watts (W) describe power—the rate at which the pump uses electrical energy while operating. Daily energy also depends on operating time and is expressed in watt-hours (Wh) or kilowatt-hours (kWh).
This lookup supplies no operating schedule, measured daily consumption, or Wh-per-day result. We therefore cannot present its running-watt value as daily energy. If you need a daily-energy estimate, first obtain the applicable running watts and determine how many hours the pump operates per day. Those inputs must then be used in a calculation that supports power and operating time; this page does not perform that calculation.
Check your pump’s label
- Find the electrical label. Check the pump body, power-cord tag, plug-in adapter, packaging, or model manual.
- Confirm which side of the power supply you are reading. For an AC pump, look for its AC input rating. If the pump itself is 12 V DC and uses an adapter, the generator-facing load is the adapter’s AC input—not just the pump’s DC rating.
- Look for watts first. A label may show rated input power directly in W. Record the listed voltage and frequency so you do not apply a rating from a different supply market.
- Keep startup unknown unless it is stated explicitly. Do not substitute locked-rotor amps (LRA) for starting watts. LRA is current under a locked-rotor condition; it is not itself a watt value, and this lookup does not provide a supported conversion.
- Use the model-specific value in your load plan. Mark the air pump as essential if it must remain powered. List optional household loads separately so they can be delayed or turned off when generator capacity is limited.
If neither the label nor the manual gives starting watts, leave that field unknown rather than entering zero. Model-specific information from the manufacturer may be needed before startup compatibility can be confirmed.
Limits and next step
This is a planning lookup, not a measurement of your pump. It does not establish daily energy use, runtime, startup compatibility, or guaranteed generator performance.
Next, review the difference between running and starting watts. Once you have suitable ratings for the pump and your other essential loads, enter the equipment that must operate together in the home generator calculator. Evaluate loads that can take turns separately instead of automatically adding all of them as simultaneous demand.