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growing marijuana under water

Aquaponics can get complicated because you have two focuses: plants and fish, instead of just worrying about your weed plants.

A tricky thing with aquaponics is being able to balance the fertilizer from the fish that goes into your plants. If growing with aquaponics, be sure to have a firm grasp of nutrients and pH levels, and how to balance them.

Here are types of fish most commonly found in aquaponic setups because of their low maintenance and versatility:

Disadvantages of growing weed with aquaponics

Then you’ll need to create a media bed for the plants. Some growers use one big flood tray for a number of plants, and some use individual pots, as in the graphic above.

Aquaponics is a growing technique that combines two efficient systems: Aquaculture, a process of farming fish such as tilapia, koi, or bluegills, and hydroponics, a method of growing plants without soil. When the two are combined, you can create a nearly closed loop system that produces both plants and fish for consumption.

The two sections can be separated by burlap, which allows roots to travel through while preventing soil from reaching the water. When watering with additional nutrients, avoid oversaturating the soil to keep the water below in the aquaponics system clean.

Common challenges when growing weed with aquaponics

Growing weed in a hydroponic setup can be challenging enough, and growing in an aquaponic setup is even more difficult. Growing with aquaponics is not recommended for first-time growers.

A double-root zone allows you to divide roots into two sections: The bottom half of the pot gets submerged in water, while the upper half of the pot can be filled with soil. This allows additional nutrients to be applied to the roots without contaminating the water.

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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.

There are 14 references cited in this article, which can be found at the bottom of the page.

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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.