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Flexible Air Diffuser 90 cm. increases dissolved oxygen in indoor cultivation tanks, creating a uniform curtain of microbubbles that stabilizes the nutrient mix. Made of durable silicone with a black finish, it adapts to the perimeter of the tank and improves the performance of the irrigation system.

The Flexible Air Diffuser 90 cm. is a porous silicone line that, connected to an air pump, distributes oxygen along its entire length. The flexibility allows you to form rings, perimeter “U” shapes or straight lines, covering round or rectangular bottoms with a large active surface.
The fine microbubble promotes root respiration, reduces biofilm, limits stagnant odors and keeps nutrients in light suspension.
In medium and large tanks (80–300 L) used for drip, light recirculation, auxiliary DWC or NFT, continuous aeration helps stabilize pH and EC between irrigations, providing batch-to-batch uniformity.
The black finish discreetly integrates the diffuser into opaque tanks and prevents reflections.
With standard connection for air hose and compatibility with flow regulators, installation is simple and scalable.
In the Hydroponics Blanes catalog, trusted Grow Shop and online grow shop, it is found alongside pumps, check valves and distributors within the irrigation accessories family, with discreet shipping throughout Spain.
In indoor growing, dissolved oxygen makes the difference in root vigor, ion assimilation and solution stability. Flexible Air Diffuser 90 cm. creates an enveloping curtain that drives a gentle convective flow, avoiding dead zones at the bottom of the tank. This effect reduces sediment, improves temperature uniformity and makes it easier to water indoor crops with a constant mix throughout the photoperiod. In preparation tanks, aeration helps dissolve fertilizers and keep the mixture homogeneous before each cycle.
It is used to enrich the nutrient solution with oxygen, prevent salt stratification, limit algae growth on illuminated surfaces and decrease biofilm formation. It is useful in service tanks, substrate washing tubs and recirculation tanks. It also provides benefits in NFT systems during pauses, keeping the reserve oxygenated; and in auxiliary DWC, where the root requires constant supply. By increasing dissolved oxygen, the roots have greater respiratory capacity and nutrient absorption is optimized in all phenological phases.
To get the most out of the Flexible Air Diffuser 90 cm., it is recommended to integrate:
The entire ecosystem of irrigation accessories is available at Hydroponics Blanes with technical advice and discreet shipping from the online grow shop.
1) Rinse before first use to remove manufacturing dust.
2) Place at the bottom of the tank forming a circle, semicircle or perimeter line; fix with suction cups or inert weight suitable for water.
3) Connect to air pump using hose; add check valve.
4) Adjust flow until uniform microbubble is achieved along the 90 cm.
5) Maintain continuous aeration when the solution remains in the tank for more than 24–48 h.
6) Perform periodic maintenance: submerge the diffuser in diluted peroxide or vinegar, rinsing with clean water; check for obstructions.
Key specifications: material: silicone, length: 90 cm, color: black. Adaptable format for round and rectangular tanks, compatible with domestic and semi-professional air pumps.
The price of Flexible Air Diffuser 90 cm. varies depending on brand, kit with hose/check valve and active promotions. There are packs that include air pump and distributors for multiple tanks, optimizing investment in medium installations.
Available at Hydroponics Blanes, trusted Grow Shop specialized in indoor growing and irrigation system. Wide catalog, secure payment and discreet shipping in the online grow shop. After purchase, you receive an email with a discount code for the next order.
Flexible Air Diffuser 90 cm. transforms the tank into an oxygenated and stable environment: more dissolved oxygen, homogeneous mixture and controlled parameters.
Integrated with pump, meters and opaque lid, it becomes a key part of the irrigation system for watering indoor crops consistently and cleanly.
At Hydroponics Blanes it is easy to complete the setup with compatible irrigation accessories and professional support.