Product Overview

This is a 3D-printed biochemical filtration and oxygenation device specifically designed for small aquariums, shrimp tanks, and breeding tanks—commonly referred to as the “Water Fairy.” Powered by an air pump, it utilizes internal filter media to cultivate beneficial bacterial colonies, providing gentle water flow and highly efficient biological filtration while simultaneously enriching the water with dissolved oxygen as air bubbles rise. Its cylindrical, modular design balances high filtration performance with ease of installation and maintenance.

Design Highlights

1. Modular, Detachable, and Washable Structure: The main body consists of a cylindrical filter cartridge perforated with numerous inlet ports and a threaded top cap with an outlet pipe. The cap can be easily unscrewed without tools, making it simple to clean the interior of the cartridge and to replace or replenish filter media such as bio-foam or bio-balls.
2. Large-Area, Uniformly Perforated Water Inlet: The entire surface of the filter cartridge is covered with evenly spaced, large rectangular holes, providing a vast effective water-inlet area that minimizes clogging and ensures thorough water intake and filtration.
3. Integrated, One-Piece Bent Outlet Pipe for Air and Water: The top cap features an integrally molded, upward-sloping short outlet pipe that connects directly to an air tube and directs the combined water and air flow in a specific direction, optimizing water circulation within the tank while maintaining a simple, leak-proof design.
4. High Compatibility and Print-Friendly Design: The structure is robust and compatible with standard air-pump tubing. The model has been optimized for 3D printing, requiring no supports during printing and delivering a high success rate.

Technical Specifications

• Power Compatibility: Requires connection to a standalone air pump for operation.
• Core Functions: Biochemical filtration, oxygenation, and water circulation.
• Primary Materials: Suitable for 3D printing with PLA, PETG, or ABS (PETG or ABS are recommended for long-term underwater use).
• Structure: A two-piece, separable design consisting of a filter cartridge and a top cap.
• Tube Connection Diameter: The air-outlet port on the top cap typically accommodates standard 4 mm or 6 mm air tubing.

Application Scenarios

1. Small Aquarium/Desktop Tank Filtration: Provides essential biological filtration and oxygen supply for small aquariums without built-in filters.
2. Ornamental Shrimp and Crystal Shrimp Husbandry: Offers extremely gentle water flow and powerful biological filtration, making it an indispensable filtration component for shrimp tanks.
3. Fry Breeding Tanks: The gentle water flow and efficient bacterial colonization help maintain stable, safe water conditions for fry without sucking them into the filter.
4. Supplementary Filtration for Large Aquariums: Used as an auxiliary biochemical filtration and oxygenation unit installed alongside the main filtration system to enhance overall filtration performance.