STL: FREE Frag Rack STL File | 49-Spot Reef Coral Frag Holder
Organize your coral frags with this FREE 3D printable frag rack STL!
Designed for reef aquarium hobbyists, this compact frag rack features 49 frag plug holes in a clean, space-efficient layout that helps keep your corals organized, accessible, and looking great while they grow out.
Whether you're stocking a frag tank, organizing new additions, or creating a clean display for your favorite corals, this rack is designed to be easy to print and durable enough for everyday reef use when printed in PETG.
Features
✅ FREE STL download
✅ Holds up to 49 coral frags
✅ Compact footprint for frag tanks and grow-out systems
✅ Designed specifically for PETG printing
✅ Easy two-color printing option by pausing the print and swapping filament
✅ Strong, sturdy design with excellent printability
Dimensions
- Length: 7.7 in (195.6 mm)
- Width: 7.7 in (195.6 mm)
- Height: 2.2 in (55.9 mm)
- Hole Diameter: 0.5 in (12.7 mm)
- Capacity: 49 Frag Plugs
Recommended Print Settings
- Material: PETG
- Speed: 200 mm/s
- Infill: 40%
- Walls: 3 Perimeters
Optional Color Accent
For a custom look, pause the print around Layer 5 and swap to an accent color. Neon colors work especially well and make the frag plug holes stand out for a clean, professional appearance.
Important
This listing is for a digital STL file only. No physical product will be shipped. After download, simply slice the file using your preferred software and print using the recommended settings above.
Perfect for reef keepers, coral farmers, frag tank builders, and anyone looking for an easy-to-print solution for organizing coral frags.