page_title: Cannabis cultivation
section_title: Hydroponics
hierarchical_section_title: Cannabis cultivation / Hydroponics
caption_attribution_description: English: These two cannabis plants are being grown in a DWC (deep water culture) hydroponic system. They are in the vegetative stage and are being in a 4'x4'x7' grow tent under a 600W MH (Metal Halide) grow light.
context_page_description: Cultivation techniques for other purposes differ.
context_section_description: Hydroponic cultivation generally occurs in greenhouses or indoors, although there is no practical obstacle to growing outdoors. In general, it consists of a non-soil medium exposed to a nutrient and water flow.
  There are many types of hydroponic systems. If the nutrient solution floods the loose growing medium and recedes for aeration, this is an ebb and flow or flood and drain system. Systems that gradually drip solution onto the medium are drip systems. Systems that intermittently spray roots floating in air are called aeroponic systems. If aerated water runs down a channel lined with a film of rooting medium, this is a nutrient film technique system. A series of tubes intermittently running high flow nutrient solution into the tops of growing containers use a top feed system. Aquaponics, another growing method that is gaining popularity, employs the use of fish water and recirculates that water from the fish holding tank to the growing bed.
  Hydroponic systems greatly increase aeration of plant roots, and increase control of nutrient uptake. Hydroponic systems are decidedly more difficult to operate for the amateur or hobby grower, as over-fertilization is common, because there is no soil to act as a nutrient buffer. For this reason, many growers now use coconut fiber as a soil-less medium because of its high drainage and buffering capabilities that make it almost impossible to over-fertilize. Additionally, if a hydroponic system fails, the crop has a high probability of dying as the roots rapidly dry out (this is especially true of aeroponic systems).
  There is now a new breed of hydroponic configurations such as the Omega Garden, the B-Pod and the EcoSystem Vertical Growing System that use circular designs to maximize efficiency. This consists of plants being placed or, in the case of the Omega Garden, revolving around a central light that makes maximum use of the light output.
caption: These two cannabis plants are being grown in a DWC (deep water culture) hydroponic system. They are in the vegetative stage and are being grown in a 4'x4'x7' grow tent under a 600W MH (Metal Halide) grow light.
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