Fluval Flex Aquarium Filter Mod 3D printable model by Stefan M.

Fluval Flex Aquarium Filter Mod

Source: MyMiniFactory by Stefan M.

The Fluval Flex Aquarium Filter Mod is a free printable 3D model from MyMiniFactory by Stefan M.. After I bought a Fluval Flex 35l/9g (okay... You can download the STL file from the original listing below and print it at home.

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30 saves Source: MyMiniFactory Updated 2026-04-15

Tags: aquarium, flex, filter, Fluval, Fluval_Flex, Fish_Tank, aquarium_filter

About this model

After I bought a Fluval Flex 35l/9g (okay... just because it looked nice) I quickly noticed some flaws and / or opportunities to tinker :-) So I started to redesign and add some things. This is Part 2 of the project. The whole project will cover cooling, heating, light control, water refill (and whatever idea I will have in addition) using an ESP micro controller and without any destructive modifications at the tank hardware. The original Filter has a really strange arrangement of the filter media. Generally you want the water to flow first through mechanical filtering, then through biological and then sometimes through chemical (like active carbon treatment or nitrate removal). In the original setup the water was more or less routed through the mechanical filter and maybe or not it could …

Frequently asked questions

Is this 3D model free to download?
Yes. Fluval Flex Aquarium Filter Mod is free to download from MyMiniFactory. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Stefan M..
Who made this model?
Designed by Stefan M., published on MyMiniFactory. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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