By definition hydroponics is a technique of growing plants (without soil) with water containing dissolved nutrients. No soil is used but in most cases a growing medium is used to support the plant’s root system. A few examples of popular mediums are perlite, vermiculite, Rockwool, coconut coir, clay pellets, peat moss, sand, and even small pebbles. The basic idea behind the medium is to allow water to flow but…
This is a really interesting hydroponic solution using change in temperature caused by the sun to force nutrient solution to the upper chamber. This is done using 1 and 2 liter bottles, superglue, plastic tubing, and some perlite. If you want to see the whole write-up here is a link.
If you want something that is a little more aesthetically pleasing than the $20 PC Grow box and don’t have the counter space for an AeroGarden then the Broto Domestic Greenhouse might be the right option for you. Information such as price and if it will actually be commercially available seem to be missing, but seems to be a completely self contained aeroponics solution and given the use of…