KEJKHA Direct Water Change Diffuser Compatible with Aquarium Tubing | Rain Effect Side Flow Nozzle for 22mm 16mm 12mm 11mm Hose | Soft Water Outlet for Substrate Protection (16mm)

Simplify your aquarium water-changing routine while effectively protecting your substrate with this DC-style water-changing diffuser. Say goodbye to the traditional method of simply inserting a hose directly into the tank—a practice that often stirs up substrate, uproots aquatic plants, and even causes stress and fright to your fish. This accessory transforms the powerful incoming water stream into a gentle, "rain-like" dispersed flow. Featuring a wide-mouth inlet, the diffuser connects directly to and is compatible with four common aquarium hose sizes: 22mm, 16mm, 12mm, and 11mm. As water passes through the device's body, it is discharged through multiple small side perforations, creating a soft, uniform diffusion pattern across the water's surface rather than a single, forceful jet. This design helps prevent disturbance to the tank's substrate, thereby keeping your aquarium clean and ensuring your aquascaping remains perfectly intact. Inspired by the smooth, unimpeded flow of a gas pump nozzle, the diffuser features a cleverly engineered internal channel layout that guides water efficiently without generating back pressure or causing splashing. Operation is remarkably simple: simply attach your water-changing hose, place the diffuser inside the tank, and begin refilling. It is recommended to start with a low flow rate initially; once the diffuser is stable and seated securely within the tank, you can gradually increase the water flow speed as needed. For enthusiasts seeking to maintain a healthy, tranquil, and undisturbed aquarium environment, this tool offers a simple yet highly effective solution.

• Direct-Flow Design for Simple Water Changes: This diffuser allows aquarium tubing to be inserted directly into a wide-mouth opening, letting water flow straight through the unit for straightforward tank refills without splashing or disturbing decorations .
• Multi-Size Hose Compatibility: Engineered to accept tubing with diameters of 22mm, 16mm, 12mm, and 11mm, making it versatile for use with common aquarium maintenance equipment .
• Gentle Rain Effect Water Distribution: Water exits through multiple small side ports rather than a single downward stream, creating a soft, rain-like dispersion that mimics natural precipitation .
• Protects Substrate from Disturbance: Because water flows sideways instead of directly downward, the diffuser helps prevent sand or gravel from being stirred up during water changes, keeping the aquarium floor intact .
• Durable and Safe Aquarium-Grade Materials: Crafted from water-resistant materials, this product is highly durable and designed for repeated use; a simple rinse after every water change is all that is needed to ensure a thorough cleaning.