The correct gravel depth is important for the development of the roots system. Too shallow gravel will not only restrict root development and volume, but will also cause the development of algae on the surface of the gravel. The algae attract fungus gnats which feed on the roots of plants. The reason why the gravel [...]

Plastic gullies (or also called hydro-liners) are made from thick durable plastic with a thickness between 125 micron and 500 micron. The recommended thickness to use is the 500 micron plastic. Although it is much more expensive, it is also more durable especially during the building phase where people tend to walk over the plastic [...]