Aquarium Test Kit Test Tube and Bottle holder

The API Freshwater Master Test Kit is the gold standard for checking the water chemistry of your aquarium.

But it comes in a really poor quality container that is impossible to use regularly. Using this design and a syringe, I am able to keep test time to under 2 minutes.

There are a few different designs:

• Master Kit: stores 8 test liquid bottles and 4 test tubes with the typical labels
• Hardness Kit: for measuring hardness.
• Two different pH kit designs: one deep and one wide.
• One "Master + Hardness" Kit: 12 test bottles and 6 test tubes

I've also included my OpenSCAD file so you can customize as necessary.