I started using DIY CO2 in one of my tanks thats growing out plants for other tanks and I needed a diffuser. I know the glass ones are cheap, but this was next to free and I have no patience to wait for shipping.

This model makes use of the ability to modify specific object parameters in the slicer. I found that 7% infill for the body is sufficient to not hinder the flow but provide enough structure for the grid plate. Similarly, I've found that 80% infill for the grid is making good micro bubbles for the CO2. If you wanted to use this as an air stone, I'd recommend a more coarse grid. Maybe around 60-70% infill grid.

Cannot have any top or bottom layers for “Infill” and “Grid” otherwise it won't work correctly.

Wall loops not needed for “Infill”, Optional for “Grid”.

Check out my other FREE models here!

Check out my other FREE aquarium models here!