Bring the vibrant life of a tropical freshwater aquarium straight to your print bed with the Flexi Serious Tropical Fish! Inspired by popular freshwater aquarium species like the tetra, this articulated model combines a sleek aquatic profile with an expressive, slightly serious facial feature and large glassy eyes.

The model is meticulously engineered to print completely 100% support-free, saving you time and material. It features fluid, interlocking print-in-place joints that give it a natural, swimming movement right off the build plate. The file includes options scaled for 25 mm or 12 mm glass eyes depending on the size you choose to print, as well as custom 3D-printable eyes if you prefer an all-filament look! The included 3MF file comes pre-configured with multi-color painting options (allowing you to print contrasting body and fin colors like the iconic blue and red tetra look) as well as single-color setups for silk or gradient filaments.

✨ Features:

Aquarium-Inspired Aesthetics: Modeled with organic curves and defined fins, taking inspiration from classic freshwater tetra fish.

Dual Size Eye Sockets & Printable Eyes: Designed with eye sockets compatible with 25 mm or 12 mm glass cabochon eyes depending on scale, and includes fully 3D-printable eye models right in the folder.

Fluid Articulation: Multi-segmented print-in-place body joints that flex and sway naturally in your hand.

Multi-Color & Single-Color Ready: Comes with calibrated 3MF project files supporting multi-filament printing (Bambu AMS / OrcaSlicer) and single-color STL files.

100% Support-Free: Smart layout and overhang angles engineered to print smoothly directly on the build plate with zero structural waste.

All Markus3D designs are Copyrighted and for PERSONAL USE ONLY. To sell prints of my models, you can subscribe to my Patreon or Thangs with the commercial tier membership. Digital files can’t be shared or resold!

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🔧 Recommended 3D Printing Settings:

🖨️ Layer height: 0.2 mm (or 0.16 mm for smooth top curvature) 🖖 Walls / Perimeters: 3 (Highly recommended for strong joint connections and smooth outer surfaces) 🔄 Infill: 15% (Gyroid or Grid work perfectly) 🚫 Supports: No