Pioneering Hydroponics

Since 1976

Hydroponic Growing Media

Not all hydroponic systems use growing media (for example Gro-Tanks), but the refinement of many different kinds of alternative substrates has definitely popularised their use. A grow media is defined as anything that a plant can successfully grow in, including the widely utilised rockwool and stonewool. The hydro systems that do use grow media are not using the media to supply nutrients: the grow media is to support the plant physically and to hold onto some of the nutrient solution until the next feed.