Aquarium partition
Small fish isolation
Aquarium Accessories
3D-printed aquarium supplies
Ornamental fish farming
Fish Tank Isolation Box
Four-compartment divider box
Aquarium supplies
Fry-breeding神器
Water-resistant and corrosion-resistant
Hollow Structures

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Product Introduction
This four-compartment betta fish isolation box is a practical partitioning device specifically designed for aquarium keeping. Featuring a “2×2” configuration of four independent compartments, it can simultaneously house multiple bettas or small ornamental fish, effectively preventing territorial disputes. The fully meshed, open-design ensures efficient water circulation and oxygenation, while its standard-fit design accommodates most aquarium tank openings for easy installation. It is an ideal tool for breeding isolation, new-fish quarantine, and sick-fish recovery.
Design Highlights
- Four independent compartments provide physical separation to prevent fighting and protect fins from injury;
- The fully meshed, open structure allows unobstructed water flow and enhances oxygen dissolution efficiency;
- A modular snap-lock design ensures a secure, stable fit against the aquarium rim, minimizing the risk of shifting;
- The edges are smoothly rounded with no burrs, thanks to 3D-printed one-piece construction that is water-resistant and corrosion-proof;
- The compact, minimalist design fits most desktop or medium-sized aquariums, saving valuable space.
Technical Specifications
- Material: Food-grade PLA plastic (3D-printed)
- Number of compartments: 4 (2 columns × 2 rows)
- Individual compartment dimensions: approximately 10 cm × 10 cm × 10 cm (actual dimensions may vary slightly)
- Overall dimensions: approximately 20 cm × 10 cm × 20 cm (length × width × height)
- Mesh aperture: approximately 3 mm × 10 mm (elongated, breathable slots)
- Suitable fish species: bettas, guppies, danios, and other small ornamental fish
- Suitable aquarium types: standard desktop tanks and small-to-medium-sized aquariums with a tank opening width of at least 20 cm
Application Scenarios
- During betta breeding, isolate females and fry to prevent aggression from males;
- Isolate new fish before introducing them to the main tank for quarantine and observation of their acclimation;
- Provide separate treatment for sick fish to prevent cross-infection;
- Temporarily partition the tank when keeping multiple fish together to reduce territorial conflicts;
- Use as a functional zoning element in aquarium landscaping, balancing aesthetics with practicality.
Originality of the Model
The author declares that this work is their personally original model
This model is licensed under the following terms:
This work is licensed under a Standard Digital File License. Digital files have a strict non-commercial, personal use only license.
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital file or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including remixes of this object). You can not host these files on other digital platforms, web stores or cloud repositories. The objects may not be used in any way whatsoever in which you charge money, collect fees.
Models(1)
四孔隔离盒.3mfDesigner500.45 KB
2026-03-24






