Plastic airstone for hydroponic

thingiverse

I required an airstone for my compact hydroponic setup. I discovered this fantastic design created by 3dponics. The challenge was that the original model failed to fully submerge, unless there was a significant amount of water present. I crafted this remix from the original. The coin slot is engineered to accommodate five-cent euro coins with ease. This component seamlessly fits inside a four-millimeter tube.