Top 10 Air Diffusers for freshwater aquarium in 2026

AQUA MEDIC - Midi Wood Diffuser - 2 pcs - Linden Wood Air...

(2 reviews)

7.99 €

Aqua Medic wooden air diffusers are made of linden wood . In order to maintain the performance of the skimmer, it is necessary to regularly check the formation of bubbles and replace the diffusers every 6 to 8 weeks.

Size: approx. 18 x 18 x 78mm (LxWxH)

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Aqua Medic wooden air diffusers are made of linden wood . In order to maintain the performance of the skimmer, it is necessary to regularly check the formation of bubbles and replace the diffusers every 6 to 8 weeks. Size: approx. 18 x 18 x 78mm (LxWxH)

AQUA NOVA - Spherical Air Diffuser 25mm

(1 review)

0.99 €

Diffuser for air pump compatible with fresh water and sea water. Spherical: 25mm . Air hose connection Ø4/6mm.

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Diffuser for air pump compatible with fresh water and sea water. Spherical: 25mm . Air hose connection Ø4/6mm.

SÖCHTING - Oxydator A - Oxygen reactor - Up to 400 liters

79.99 €

Oxydator A from Söchting , is a non-electric oxygen reactor , for improving the water quality of freshwater aquariums up to 400 liters . This device releases a molecule of free oxygen into the water.

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Oxydator A from Söchting , is a non-electric oxygen reactor , for improving the water quality of freshwater aquariums up to 400 liters . This device releases a molecule of free oxygen into the water.