Product Introduction

This is a modular upgrade kit for aquarium filtration systems, specifically designed to enhance the water outlet. The kit includes various types of diffusers and elbows, allowing you to direct the filtered water flow at different angles, shapes, and functions. The core component features a Venturi air-intake design that naturally draws in air and mixes it with the water stream without requiring any additional power, delivering multiple benefits such as oxygenation, water circulation, and removal of surface oil films—meeting the diverse needs of planted tanks, bare-bottom tanks, and small to medium-sized aquariums.

Design Highlights

1. Modular Quick-Release Assembly: Offers L-shaped elbows, duckbill nozzles, straight connectors, tapered tubes, and other interface options that can be freely combined like building blocks, easily creating water flows in horizontal, vertical, upward, or downward directions to suit complex aquascaping layouts.
2. Splash-Resistant Duckbill and Flared Nozzle: The unique flat duckbill and wide-flared nozzle design breaks up concentrated water streams into gentle water curtains or fan-shaped sprays, effectively reducing impact force, preventing splashing and toppling of aquatic plants, while also increasing the water–air contact area to enhance oxygenation.
3. Integrated Adjustable Oxygen Intake: A dedicated small air-inlet hole (based on the Venturi principle) is built into the key component; by adjusting the intake volume, ambient air can be mixed with the outgoing water stream, generating abundant fine bubbles for efficient oxygenation and surface agitation.
4. Universal Compatibility and Secure Installation: The interfaces are designed with standard pipe diameters, ensuring a secure connection to common flexible tubing. Some components come equipped with adjustable mounting clips or suction cups, allowing stable attachment to the glass edges of aquariums and accommodating varying tank wall thicknesses.

Technical Specifications

• Compatible Pipe Diameter: Standard 16/22 mm (outer diameter 16 mm) or 12/16 mm flexible tubing.
• Primary Materials: ABS or PETG (suitable for 3D printing, safe and durable).
• Kit Components: L-shaped elbow, duckbill diffuser, straight diffuser, functional head with air intake, connecting tubes, and more.
• Core Functions: Water flow guidance, Venturi-based oxygenation, splash prevention, and surface water circulation.

Application Scenarios

1. Planted Tanks and Eco-Aquariums: Use the duckbill nozzle to provide gentle, diffused water flow that protects aquatic plants while enhanced surface agitation helps dissolve CO₂.
2. Oxygenation and Circulation in Small to Medium-Sized Fish Tanks: When keeping high-oxygen-demand species such as goldfish or bettas, the functional head with air intake simultaneously meets both circulation and oxygenation needs.
3. Removal of Surface Oil Films: Upward-flowing water or water with Venturi effect continuously breaks surface tension, effectively removing oil films and improving light penetration.
4. Customized Water Flow Solutions: Based on the tank’s aquascape (e.g., behind driftwood or rocks) and the fish’s behavioral preferences (e.g., Corydoras prefer slow-moving water), you can freely combine components to direct the water flow precisely to specific areas, minimizing dead zones.