These potent, 3500L/h air pumps can be connected to various air stones at once; perfect for large tanks.
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Description
The 3500L/h Neptune Hydroponics Air Pump is a high end device and used by hydroponic growers all over the world. Thanks to this air pump you can give your plants an oxygenated nutrient mixture that is much easier for them to absorb.
It works perfectly well in large water tanks – from 200 to 500L – where classic, smaller pumps simply just won’t do. If your water tank doesn’t have enough oxygen, your plants won’t be able to absorb nutrients properly – without oxygen, they can’t absorb NPK properly. If the water is of good enough quality, they’ll be able to absorb all of the nutrients available, maybe even faster than usual.
If the water becomes too warm, over 25°C, it’ll begin to start losing oxygen, so this is quite an important factor to keep in mind. You’ll need to keep an eye on the temperature in your tank. If possible, use a waterproof suction thermometer such as this Water Thermometer.
You can use various different air stones – check out our stock; we have different sizes and shapes for all needs.
Technical specifications of Neptune Hydroponics Air Pump 3500L/h.
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23/09/2025
What a blast! My roots are super aerated and the plants really show it. It's been great seeing them so healthy and active. Does anyone use it for more than one hydroponic system at the same time?
Translated from Spanish
¡Menuda pasada! Mis raíces están súper aireadas y las plantas lo notan un montón. Ha sido genial verlas así de sanas y activas. ¿Alguien la usa para más de un sistema hidropónico a la vez?
15/09/2025
This pump is really efficient, the airflow is constant and you can really feel the difference in the water. The only 'catch' I see is that the check valve tube slips off every now and then. Maybe a tighter fit?
Translated from Italian
Questa pompa è davvero efficiente, il flusso d'aria è costante e si sente proprio la differenza nell'acqua. L'unica 'pega' che vedo è che il tubicino della valvola di non ritorno ogni tanto mi si sfila. Forse un accoppiamento più solido?
03/09/2025
Received it and already installed it! The plants are booming, the hydroponic system is breathing completely differently now. Very happy with the purchase, it's super quiet and efficient. Recommend it to anyone who needs good aeration.
Translated from Portuguese
Recebi e já instalei! As plantas estão a bombar, o sistema hidropónico respira outro ar agora. Muito contente com a compra, é super silenciosa e eficaz. Recomendo para quem precisa de bom arejamento.