Hydroponics jar screw on pot for 80mm thread. by Faenum_Vena

Last crawled date: 3 years ago

This is a screw on pot designed to fit an 80mm jar, specificaly the Lidl conserve jar.
Print the centre of the base with exposed infil, I chose 20-25% grid.
How to set up: (Photos coming soon)
1) Thread an 8mm air hose through the hole in the side and down through the hole in the base, attach an air stone so it just rests on the bottom of the jar. You will need an aquarium air pump to feed air.
2) Fill the top of the pot with hydroponic growing medium, there are many options, such as expanded clay pebbles or coco coir, but each will work differently and will suit different types of plants. Dont use normal potting soil, it will drop into the jar and will also waterlog.
3) Add water and a hydroponic solution in the jar, old fish tank water works well too. Dont fill right to the top. leave a gap between the water level and the grid, a couple of cm will do.
4) Screw the pot onto the jar and hook up the air hose to your air pump. Place somewhere with lots of light, like on a window sill, or add an LED grow light.
How does it work:
This idea works because the air stone creates bubbles that burst on the surface of the water, causeing it to spit up onto the grate and medium above. Once the plant establishes, the roots will also grow into the water, but the air stone is still needed to airate the water. Plants are best started from seed or cuttings, cuttings can be placed straight into the medium and will root. Seedlings need to be started elsewhere when using a medium like the clay pebbles because the seeds can fall through. Its best to start seeds in pot of coco coir using the same hydroponic solution or any other method recomended for use with hydroponics.
Growing this way is low mainenance as you only need to top up the water when it gets low, and plants tend to grow quickly because they have everything they need constantly, without having to compete with other plants. These pots work best with plants such as salads or house plants that like wet areas, such as peace lillies and inch plants or anything recomended for use in tropical terariums.