What are the best air pumps for hydroponics? Do you need air pumps for hydroponics? For hydroponic systems, such as Deep Water Culture (DWC), aeration must be provided. The air stone is combined with an air pump to generate bubbles to oxygenate the plants.
If you are looking for the best hydroponic air pumps, these 3 options may help you.
Best Air Pumps for Hydroponics: Hydrofarm Air Pum
This hydroponic air pump is fairly priced, larger than expected but effective design and doesn’t get very hot but warm to the touch.
In terms of noise, it’s average. If you place it on something padded you can decently reduce the noise. If at night you want to eliminate the noise, you can turn the adjustable dial to the minimum and still have a good airflow. With the adjustable dial you can control the power according to your needs.
Additionally, it has a synthetic rubber diaphragm that provides relatively even airflow for enriching the hydroponic nutrient solution, for example, in a 5-gallon, 6-pail hydroponic system. It is available in 4 sizes: 3.2 L/min, 7.8 L/min, 15 L/min, and 25 L/min.
- Power: 3W
- Capacity: 7.8 LPM/125 GPH
- Tubing outlets: 2
- Quiet, adjustable and powerful
- Low power consumption
- Good value for money
- Good durability
- Metal air vents
- Depending on the area, its dimension is large
- It does not have an on/off switch
Best Air Pumps for Hydroponics: Simple Deluxe
This hydroponics air pump is compact, lightweight and it is electromagnetic with high quality ZL 102 aluminum housing, so the heat is dissipated reasonably and the temperature is regulated decently. You can use a small fan to cool it down and prolong its lifespan.
The outlet nozzle is made of 100% copper for a constant oxygen supply. Also, the cylinder piston is very strong and the rubber base prevents vibrations. On the other hand, try to check the filter frequently to avoid clogging. Since it doesn’t have an on/off switch, you can use a smart plug and set a time to turn it off.
- Power: 18W
- Capacity: 38 LPM/600 GPH
- Tubing outlets: 6
- Very powerful motor
- Resistant and quality material
- Good price
Best Air Pumps for Hydroponics: General Hydroponics
This air pump has a double diaphragm, which means there are fewer mechanical parts in constant motion, so electricity consumption is low, maintenance and heating is minimal.
Likewise, it has four adjustable outlets that can be connected to powerfully feed a hydroponic system, so oxygenation is very active for the growth of your plants.
Also, it usually stays where you put it because the pump sits on a base. You can adjust the air outlet through the valves.
- Power: 8W
- Capacity: 20 LPM/320 GPH
- Tubing outlets: 4
- Double diaphragm
- Adjustable air flow
- Quality material
- A little noisy
Tips for choosing
The internal parts of the air pump should be made of some metal, rather than plastic, because over time, it can release particles into the hydroponic system.
The size of the air pump will depend on the size of your hydroponic system. A good rule of thumb is for the pump to deliver at least 500-600 cc (500-600 ml) of air per minute.
Also, as a general rule of thumb, 1 watt is needed for 1 gallon of water. Therefore, for a 5 gallon tank, a minimum of 5 watts is required.
For large hydroponic systems with many plants or multiple tanks, a pump with multiple nozzles is required.
Aquarium tubes are very functional. It is important that these have dark colors to avoid the proliferation of algae. Another option is to wrap the tube with black adhesive vinyl.
You can opt for a pump below 45 dB for comfort. Also, you can place a pad underneath to muffle the noise.
For deep water culture systems, the pump has to run all day, every week.
- You must plug the pump into a wall outlet and not into a surge protector.
- Place it in a cool area to avoid overheating.