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An ebb and flow (also known as flood and drain) system features water that, well, ebbs and flows. These systems consist of several buckets suspended above a growing tray that features a water inlet and outlet. Both of these waterways are connected to an external tank that contains nutrients, an air stone to aerate the water supply, and a pump to move water into the growing tray. The roots in these systems are not continuously submerged within water. Instead, water periodically floods the growing tray with fresh oxygen and nutrient-enriched water. Once the pump cycle ends, all of the water drains back into the external tank.
The wick system features a growing container filled with a medium and a separate reservoir that houses the nutrient solution. Some growers choose to fill the growing container with soil, whereas others opt for soilless media such as coco coir. These growing media feature gaps that allow oxygen to enter and aerate the roots—removing the need for an air pump.
The nutrient film technique features a similar setup to the ebb and flow system. However, instead of occasionally flooding the growing tray, it provides a constant stream of water and nutrient solution to the roots. The reservoir contains an air stone to aerate the solution and an electric water pump to circulate the solution into the growing tray. The growing tray sits at a slight angle to enable the solution to flow downward and back into the reservoir after passing the roots.
Passive hydroponic systems feature minimalist designs. They use low-tech methods to deliver water and nutrients to cannabis roots without using additional electricity.
b) Lighting hangers
There are numerous types of passive hydroponic systems, but the Kratky method and wick system are two of the most popular.
d) Hydroponic reservoir and tray
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This article was co-authored by Lauren Kurtz. Lauren Kurtz is a Naturalist and Horticultural Specialist. Lauren has worked for Aurora, Colorado managing the Water-Wise Garden at Aurora Municipal Center for the Water Conservation Department. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014.
Whether you call it weed, cannabis, pot, marijuana, or something else, the plant known as Cannabis sativa is actually easy to grow at home when you know what you need to do. Growing hydroponically will provide you with higher yields and a shorter grow time compared to growing in soil, but it can often be difficult for the beginning grower to get started with hydroponics. However, most people think of plants growing in water when they think “hydroponics” but actually your plants will get many of the benefits of hydroponics as long as they’re getting their nutrients directly in their water supply. However because of superior air to water ratio in hydroponics, it remains the industry standard. This tutorial will show you step-by-step how to grow your marijuana in 3-4 months using the (arguably) easiest hydroponic method: hand-watering in a soil-less medium.