What is Hydroponic Mesh Baskets Trays and Why Do We Use Them?

17 Jun.,2024

 

What Are Hydroponic Systems and How Do They Work?

Hydroponics, a Latin word meaning &#;working water,&#; is the art of gardening without soil. In the absence of soil, water works to provide nutrients, hydration, and oxygen to plant life. From watermelons to jalapeños to orchids, plants flourish under the careful regimen of hydroponics. Using minimal space, 90% less water than traditional agriculture, and ingenious design, hydroponic gardens grow beautiful fruits and flowers in half the time.

For more information, please visit Hydroponic Mesh Baskets Trays.

History of hydroponics

Though the technology sounds modern, the history of hydroponics dates back to the Hanging Gardens of Babylon, one of the Seven Wonders of the Ancient World. The Euphrates River was diverted into channels that cascaded down the lavish garden walls. In the 13th century, Marco Polo wrote of witnessing floating gardens in China. However, hydroponics is far from merely an innovation of the ancient ages. In the s, NASA grew aeroponic bean seedlings in zero gravity aboard a space station, opening up the possibility of sustainable agriculture in space. Hydroponics continues to be a timeless and dynamic method of water conservation and crop production. 

What is hydroponics? 

Hydroponics is the cultivation of plants with water and nutrient solutions rather than soil. Hydroponic flowers, herbs, and vegetables are planted in inert growing media and supplied with nutrient-rich solutions, oxygen, and water. This system fosters rapid growth, stronger yields, and superior quality. When a plant is grown in soil, its roots are perpetually searching for the necessary nutrition to support the plant. If a plant&#;s root system is exposed directly to water and nutrition, the plant does not have to exert any energy in sustaining itself. The energy the roots would have expended acquiring food and water can be redirected into the plant&#;s maturation. As a result, leaf growth and the blooming of fruits and flowers flourishes.   

Plants sustain themselves by a process called photosynthesis. Plants capture sunlight with chlorophyll (a green pigment present in their leaves). They use the light&#;s energy to split water molecules they&#;ve absorbed via their root system. The hydrogen molecules combine with carbon dioxide to produce carbohydrates that plants use to nourish themselves. Oxygen is then released into the atmosphere, a crucial factor in preserving our planet's habitability. Plants do not need soil to photosynthesize. They need the soil to supply them with water and nutrients. When nutrients are dissolved in water they can be applied directly to the plant&#;s root system by flooding, misting, or immersion. Hydroponic innovations have proven direct exposure to nutrient-filled water can be a more effective and versatile method of growth than traditional irrigation. 

How does hydroponics work? 

Hydroponic systems are so effective because they allow minute control over environmental conditions like temperature and pH balance and maximize exposure to nutrients and water. Hydroponics works under a very simple principle: provide plants exactly what they need when they need it. Hydroponic systems administer nutrient solutions tailored to the needs of the particular plant being grown. They allow you to control exactly how much light the plants receive and for how long. pH levels can also be monitored and adjusted. In a highly customized and controlled environment, plant growth accelerates.   

By controlling the environment of the plant, many risk factors are reduced. Plants grown in gardens and fields are introduced to a host of variables that negatively impact their health and growth. Fungus in the soil can spread diseases to plants. Wildlife like rabbits can plunder ripening vegetables from your garden. Pests like locusts can descend on crops and obliterate them in one afternoon. Hydroponic systems end the unpredictability of growing plants outdoors. Without the mechanical resistance of the soil, seedlings can mature much faster. By eliminating pesticides, hydroponic gardens produce much healthier and higher quality fruits and vegetables. Without obstacles, plants are free to grow vigorously and rapidly. 

Components of hydroponic systems 

To maintain a flourishing hydroponic system, you need to become acquainted with a few components that make hydroponics run efficiently. 

Growing media

Hydroponic plants are often grown in inert media that support the plant&#;s weight and anchor its root structure. Growing media is the substitute for soil, however, it does not provide any independent nutrition to the plant. Instead, this porous media retains moisture and nutrients from the nutrient solution which it then delivers to the plant. Many growing media are also pH-neutral, so they will not upset the balance of your nutrient solution. There are a host of different media to choose from, and the specific plant and hydroponic system will dictate which media best suits your endeavor. Hydroponic growing media is widely available both online and at local nurseries and gardening stores.  

Air stones and air pumps 

Plants that are submerged in water can quickly drown if the water is not sufficiently aerated. Air stones disperse tiny bubbles of dissolved oxygen throughout your nutrient solution reservoir. These bubbles also help evenly distribute the dissolved nutrients in the solution. Air stones do not generate oxygen on their own. They need to be attached to an external air pump via opaque food grade plastic tubing. Air stones and air pumps are popular aquarium components and can be purchased easily at pet stores.

Learn more: What is an aquarium air pump?

Net pots 

Net pots are mesh planters that hold hydroponic plants. The latticed material allows roots to grow out of the sides and bottom of the pot, giving greater exposure to oxygen and nutrients. Net pots also provide superior drainage compared to traditional clay or plastic pots.

What is the best water for hydroponic systems?

Reverse osmosis water is the choice almost all commercial hydroponic systems. This is because water purity is paramount in successfully transferring nutrients to plants. Water bathes your hydroponic garden in nutrients, vitalizing them and promoting their vibrant growth. If you are truly invested in the health of your plants, you should equally care about the purity of the water sustaining them. Unfortunately, most water is full of contaminants. Municipal water suppliers disinfect water reservoirs with chlorine. According to the U.S. Geological Survey, 85% of the water in the United States is hard water (meaning it contains elevated levels of calcium and magnesium). Industrial spills, agricultural runoff, and waste in landfills can leach chemicals and VOCs into the groundwater supply

Reverse osmosis, (also called RO), eliminates 98% of all impurities from water by forcing it through a semipermeable membrane. Reverse osmosis strips water of heavy metals, salts, bacteria, and total dissolved solids (TDS). The result is water of remarkable purity. Using RO water for hydroponics ensures that your plants are drinking up only the nutrients you want them to. Most commercial hydroponic operations use RO water to sustain their crops. Much like hydroponics proves there is a superior way to grow plants, reverse osmosis has proven there is a superior way to facilitate this growth. 

Why should I use RO water for hydroponics?  

Reverse osmosis water allows you to start with a blank slate and adds precise levels of nutrients, promoters, and pH adjusters to your water. From this neutral base, you can construct the ideal nutrient solution. For example, if you live in an area with hard water, your water will already contain high levels of calcium. Many hydroponic nutrient blends contain calcium because it encourages plant growth. However, adding a calcium-rich solution to hard water results in nutrient imbalance. Nutrient levels are also more difficult to measure in water with high levels of TDS. Most manufacturer's instructions for nutrient solutions are based on RO water. If you are trying to bring the water to 800ppm of nutrients, and the water already exists at 200ppm of TDS, you must approximate. The results will inevitably be inaccurate. Reverse osmosis water is also lower in pH. Plants prefer acidic water, and using RO water to hydrate your crops will lessen the amount of pH regulation incumbent on you as a grower.     

Controlling the nutrient balance and pH level of your water is an integral component to your hydroponics&#; success. If your plants do not receive proper nutrition, it does not matter how well your hydroponics system is running. A reverse osmosis system ensures that your plants are only absorbing proper nutrients dissolved in water of highest purity. 

Learn more: How reverse osmosis works | Stages of reverse osmosis

Types of hydroponic systems

There are hundreds of hydroponic methods, but all of them are a modification or combination of six basic hydroponic systems.

1. Deep water culture systems 

Deep water culture hydroponics are simply plants suspended in aerated water. Deep water culture systems, also known as DWC systems, are one of the easiest and most popular methods of hydroponics on the market. A DWC system dangles net pots holding plants over a deep reservoir of oxygen-rich nutrient solution. The plant&#;s roots are submerged in the solution, providing it with perpetual access to nutrition, water, and oxygen. Deep water culture is considered by some to be the purest form of hydroponics.

Since the root system is always suspended in water, proper water oxygenation is vital to the plant&#;s survival. If there is not enough oxygen supplied to the plant&#;s roots, the plant will drown in the solution. Add an air stone connected to an air pump at the bottom of the reservoir to supply oxygenation to the entire system. The bubbles from the air stone will also help circulate the nutrient solution. 

It is very easy to assemble a deep water culture system at home or in a classroom without needing expensive hydroponics equipment. You can use a clean bucket or old aquarium to hold the solution and place a floating surface like styrofoam on top to house the net pots. Plants in DWC systems should only have their roots submerged in the solution. No part of the stem or vegetation should be underwater. You can even leave about an inch and a half of the roots above the waterline. The air stone bubbles will pop out of the surface and splash onto the exposed roots, so they will not be at risk of drying out. 

Advantages of deep water culture systems

  • Low maintenance. Once a DWC system is set up, very little maintenance is required. Just replenish the nutrient solution when needed and make sure your pump is running oxygen to the air stone. The nutrient solution typically only needs replenishing every 2-3 weeks, but this does depend on the size of your plants. 
  • DIY appeal. Unlike many hydroponic systems, deep water culture systems can be made cheaply and easily at home with a quick run to your pet store and local nursery to pick up the air pump and nutrients. 

Disadvantages of deep water culture systems

 

  • Limitations. Deep water culture systems are adept at growing herbs and lettuce, but they struggle with larger and slower growing plants. DWC systems are not ideal for anything that flowers. However, with some extra work, you can grow plants like tomatoes, bell peppers, and squash in a DWC system. 
  • Temperature control. The water solution should never exceed 68°F or dip below 60°F. In a DWC system, the water is static and not recirculating, so it can be more difficult to regulate temperature. 

2. Wick systems 

Wick systems are by far the simplest form of hydroponics. In these systems, plants are nestled in growing media on a tray that sits on top of a reservoir. This reservoir houses a water solution with dissolved nutrients. Wicks travel from the reservoir to the growing tray. Water and nutrients flow up the wick and saturate the growing media around the root systems of the plants. These wicks can be made of material as simple as rope, string, or felt. Wick systems are passive hydroponics, meaning they do not require mechanical parts like pumps to function. This makes it ideal for situations where electricity is either unreliable or unavailable. 

Wick systems work by a process called capillary action. The wick absorbs the water it is immersed in like a sponge and transfers the nutrient solution when it contacts the porous growing media. Wick system hydroponics only work if accompanied by growing media that can facilitate nutrient and water transference. Coco coir (fibers from the outer husks of coconuts) have excellent moisture retention and the added benefit of a neutral pH. Perlite is also pH neutral and extremely porous, making it ideal for wicking systems. Vermiculite is also very porous and possesses a high cation-exchange capacity. This means it can store nutrients for later use. These three growing media are the most suitable for hydroponic wick systems. 

Wick systems work quite slowly compared to other hydroponic systems, which limits what is practical to grow with them. For every plant in the growing tray, you must have at least one wick running from the reservoir. These wicks should be placed close to the root system of the plant. Though capable of functioning with aeration, many people choose to add an air stone and air pump to the wick system&#;s reservoir. This adds extra oxygenation to the hydroponic system. 

Advantages of wick systems

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  • Simplicity. A wick system can be set up by anyone and does not demand excessive attention after it is running. The wicks constantly supply your plants with water, so there is no risk of them drying out. Furthermore, plants like lettuce will flourish in a wick system, providing a great return on your hands-free investment. 
  • Space efficient. Wick systems are unobtrusive and can be installed anywhere because they do not need electricity to run. They are perfect systems for educators, beginners, or anyone interested in exploring hydroponics.  

Disadvantages of wick systems

  • Limitations. Lettuce and herbs like rosemary, mint, and basil grow quickly and do not demand large quantities of water. Tomatoes, on the other hand, will struggle to thrive in a wick system because of their high demand for nutrients and hydration. Other plants cannot thrive in an environment that is perpetually moist. Root vegetables like carrots and turnips will not succeed in a wick system. 
  • Susceptible to rot. A hydroponic wick system is always humid and damp. This creates the risk that fungal outbreaks and rot can develop in the organic growing media and on the roots of your plants.  

3. Nutrient film technique systems

Nutrient film technique (NFT) systems suspend plants above a stream of continuously flowing nutrient solution that washes over the ends of the plant&#;s root system. The channels holding the plants are tilted, allowing water to run down the length of the growth tray before draining into the reservoir below. The water in the reservoir is then aerated via an air stone. A submersible pump then pumps the nutrient-rich water out of the reservoir and back to the top of the channel. The nutrient film technique is a recirculating hydroponic system. 

Unlike with deep water culture hydroponics, the plant roots in an NFT system are not immersed in water. Instead, the stream, also referred to as film, only flows over the ends of their roots. The roots&#; tips wick the moisture up into the plant, and the exposed root system is given plenty of access to oxygen. The bottoms of the channels are grooved, so the shallow film can pass over the root tips with ease. This also prevents water from pooling or damming up against the root systems. 

Even though nutrient film technique systems are constantly recycling water, you should drain the reservoir and replenish the nutrient solution about once each week. This ensures your plants are being delivered ample nutrition. NFT channels must be angled at a gradual slope. If the slope is too steep, the water will rush down the channel without properly nourishing the plants. If too much water is being pumped through the channel, the system will overflow, and the plants can drown. NFT hydroponics are popular commercial systems because they can support several plants per channel and are easily mass produced. Nutrient film technique systems are best suited for lightweight plants, such as mustard greens, kale, lettuce, and spinach, as well as fruits like strawberries. Heavier fruiting plants like tomatoes and cucumbers require trellises to support the excess weight. 

Advantages of nutrient film technique systems

 

  • Low consumption. Since NFT hydroponics recirculate water, they do not demand large quantities of water or nutrients to function. The constant flow also makes it harder for salts to accumulate on the plant's roots. Nutrient film technique systems also do not require growing media, so you are saved the expense of purchasing media and the hassle of replacing it.     
  • Modular design. Nutrient film technique systems are perfect for large-scale and commercial endeavors. Once you have one channel set up and functioning, it is very easy to expand. You can fill your greenhouse with multiple channels supporting different crops. In this case, you should feed each channel with a separate reservoir. If pump failure occurs or disease spreads in the water, you will not lose your entire operation.

Disadvantages of nutrient film technique systems

 

  • Pump failure. If the pump fails and the channel is no longer circulating the nutrient film, your plants will dry out. In a matter of hours, your entire crop can perish if it is not being supplied with water. Because of this, maintaining an NFT hydroponic system requires vigilance. You will need to diligently observe the performance of your pump. 
  • Overcrowding. If the plants are spaced too close together or the root growth is too proliferate, the channel can become clogged. If the channel is obstructed by roots, water will be unable to flow, and your plants will starve. This is especially true of the plants at the bottom of the channel. If the plants at the end ever seem to be underperforming compared to the rest of the channel, consider removing some plants or switching to a smaller unit.  

4. Ebb and flow systems

Ebb and flow hydroponic systems work by flooding a grow bed with a nutrient solution from a reservoir below. The submersible pump in the reservoir is equipped with a timer. When the timer starts, the pump fills the grow bed with water and nutrients. When the timer stops, gravity slowly drains the water out of the bed and flushes it back into the reservoir. The system is equipped with an overflow tube to ensure flooding does not surpass a certain level and damage the stalks and fruits of the plants. Unlike the previously mentioned systems, the plants in an ebb and flow system are not constantly exposed to water. While the grow bed is flooded, the plants drink up the nutrient solution through their root systems. When the water ebbs and the grow bed empties, the roots dry out. The dry roots then oxygenate in the interval before the next flood. The length of time between floods is dictated by the size of the bed and plants. 

Ebb and flow systems, also called flood and drain systems, are one of the most popular hydroponic growing methods. The abundance of oxygen and nutrition the plants are supplied with encourages quick and vigorous growth. Ebb and flow systems are also easily customizable and versatile. The grow bed can be filled with an assortment of net pots and a variety of fruits and vegetables. Ebb and flow systems allow you to experiment with your plants and media more than perhaps any other hydroponic system. 

Ebb and flow systems can accommodate almost any type of vegetation. Your primary limitation is the size and depth of your grow tray. For example, root vegetables require a much deeper bed than lettuce or strawberries. Tomatoes, peas, beans, cucumbers, carrots, and peppers are all popular ebb and flow crops. In fact, you can even attach trellises directly to the grow bed. &#;Grow rocks&#; and expanded clay pebbles (hydroton) are some of the most popular growing media in ebb and flow hydroponics. These are cleanable, reusable, and lightweight, and they drain well despite retaining moisture.

Advantages of ebb and flow systems

 

  • Versatility. With an ebb and flow system, you can grow much larger plants than in most other hydroponic systems. Fruits, flowers, and vegetables respond well to ebb and flow hydroponics. If you take care to provide your plants with an appropriately sized grow bed and proper nutrition, you will see bountiful yield. 
  • DIY appeal. There are hundreds of ways to construct your own ebb and flow hydroponic system at home. A visit to a hardware store and a pet store will provide you with all the supplies you need to construct an ebb and flow system. Though more expensive to set up than other DIY systems like wick and deep water culture, ebb and flow systems sustain a much broader scope of plant life than the other types.

Disadvantages of ebb and flow systems

 

  • Pump failure. Like any hydroponic system reliant on a pump, if the pump ceases to work, your plants will die. You must monitor your ebb and flow system to ensure that its performance is not compromising the health of your plants. If the water is rushing in and out too fast, your plants will not receive an adequate amount of water and nutrients. 
  • Rot and disease. Sanitation and maintenance are essential to an ebb and flow system. If the bed does not drain properly, root diseases and rot can set in. A dirty ebb and flow system can grow mold and attract insects. If you neglect cleanliness, your crops will suffer. Additionally, some plants do not respond well to the rapid pH changes that occurs from the extreme flooding and draining. 

5. Drip systems 

In a hydroponic drip system, the aerated and nutrient-rich reservoir pumps solution through a network of tubes to individual plants. This solution is dripped slowly into the growing media surrounding the root system, keeping the plants moist and well-nourished. Drip systems are another one of the most popular and widespread method of hydroponics, especially among commercial growers. Drip systems can be found as individual plants or massive irrigation operations. 

There are two configurations of drip system hydroponics: recovery and non-recovery. In recovery systems, popular with at-home growers, the excess water drains from the grow bed back into the reservoir to be recirculated during the next drip cycle. In non-recovery systems, the excess water drains out of the growing media and runs to waste. This method is more popular among commercial growers. Though non-recovery drip systems sounds wasteful, large-scale growers are very conservative with water usage. These drip systems are designed only to deliver precise amounts of solution to keep the growing media around the plant dampened. Non-recovery drip systems employ elaborate timers and feeding schedules to keep waste to a minimum. 

If you are growing plants in a recovery drip system, you will need to be attuned to the pH fluctuations in the nutrient solution. This is true of any system where wastewater recirculates into the reservoir. Plants deplete the nutrient content of the solution as well as alter the pH balance, so the grower will need to monitor and adjust the solution reservoir more than they would need to in a non-recovery system. Growing media can also become oversaturated with nutrients, so they will need to be washed and replaced periodically. 

Advantages of drip systems

 

  • Variety of plant options. A drip system can support much larger plants than most other hydroponic systems. This is one of the reasons it is so appealing to commercial growers. Melons, pumpkins, onions, and zucchinis can be amply supported by a properly sized drip system. Drip systems hold greater quantities of growing media than other systems, allowing them to support the larger root systems of these plants. Drip systems work best with slow draining media, such as rockwool, coco coir, and peat moss. 
  • Scale. Drip systems can easily support large-scale hydroponics operations. If a grower desires to add more plants, new tubing can be connected to a reservoir and divert solution to the new vegetation. New crops can be introduced to an existing drip system, as additional reservoirs can be added with differing timer schedules tailored to fit the needs of the new plants. This is another feature that makes drip systems popular commercial hydroponic systems.

Disadvantages of drip systems 

  • Maintenance. If you a growing plants using a non-recovery drip system at home, there is a significant amount of maintenance involved. You&#;ll need to consistently monitor pH and nutrient levels in your solution, draining and replacing if necessary. Recovery systems lines can also become clogged by debris and plant matter, so you will need to regularly wash and flush delivery lines. 
  • Complexity. Drip systems can easily become elaborate and complex undertakings. This matters less for professional hydroponics, but it is not the most ideal system for home growers. Simpler systems, such as ebb and flow, lend themselves better to at-home hydroponics. 

6. Aeroponics 

Aeroponics systems suspend plants in the air and expose the naked roots to a nutrient-filled mist. Aeroponics systems are enclosed frameworks, like cubes or towers, that can hold a multitude of plants at once. Water and nutrients are stored in a reservoir, and then pumped to a nozzle that atomizes the solution and distributes it as a fine mist. The mist is usually released from the top of the tower, allowing it to cascade down the chamber. Some aeroponics continuously mist the plant&#;s roots much like how NFT systems always expose the roots to the nutrient film. Others function more like the ebb and flow system, spraying the roots with mist in intervals. Aeroponic systems do not need substrate media to survive. The root&#;s constant exposure to air allows them to drink oxygen and grow at an accelerated rate. 

Aeroponics systems use less water than any other form of hydroponics. In fact, it takes 95% less water to grow a crop aeroponically than in an irrigated field. Their vertical structure is designed to occupy minimal space and allows for numerous towers to be housed in a single location. Aeroponic systems can produce great yields in confined spaces. Furthermore, because of their maximized exposure to oxygen, aeroponic plants grow faster than other hydroponically grown plants. 

Aeroponics allow for simple harvesting year-round. Vine plants and nightshades like tomatoes, bell peppers, and eggplants all perform well in an aeroponic environment. Lettuce, baby greens, herbs, watermelons, strawberries, and ginger also flourish. However, fruiting trees are too large and heavy to be grown aeroponically, and underground plants with extensive root systems like carrots and potatoes cannot be grown.

Advantages of aeroponics systems

  • Oxygen surplus. The surplus of oxygen taken in by the bare roots supercharges the plant&#;s growth. Aeroponic systems are not only the most eco-friendly hydroponic system, they are also among the highest performing. They are versatile, customizable systems that reliably produce high-quality results. 
  • Mobility. Aeroponic towers and trays can be easily transported from one location to another without disrupting the plant&#;s growth. During the transportation process, you will want to hand-mist the roots to prevent them from drying out. Additionally, aeroponic systems are designed to be ergonomic and maximize space. Aeroponic systems allow you to grow plants in greater densities than other hydroponics systems. 

Disadvantages of aeroponics systems

 

  • Expensive. Aeroponic systems have a higher initial cost than other hydroponic systems. Setting up a fully functional system with reservoirs, timers, and pumps can cost thousands of dollars. It is possible to construct a DIY aeroponics system for much less, but it is a much harder undertaking than a DIY deep water culture or wick system. 
  • Maintenance. Aeroponics systems maintain a delicate balance and, if disrupted, result in the death of plants. If your timer does not go off or a pump fails, you risk losing your entire crop unless you mist the roots by hand. You must regularly clean the root chamber to prevent root disease from compromising your plants. In general, aeroponic systems require more technique to succeed than other systems. 

 

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Small-scale hydroponics

A simple deep water culture (DWC) set-up: Plants are grown in net pots that sit in a styrofoam lid, and the roots hang down into a bucket of water.

The simplest hydroponic systems to use at home fall into a category of hydroponics called &#;Deep Water Culture.&#;

  • Plants are suspended above a tank of water and the roots hang into the container where they absorb water and nutrients.
  • This is the most common type of hydroponic system for small-scale growers such as people growing for their own use and school demonstration gardens.
  • It is also the least expensive and easiest to maintain and expand.

You can buy premade deep water culture hydroponic systems, but it is more affordable and nearly as easy to build your own.

For this type of system, your container for holding water and plants can be as simple as a 5-gallon bucket or a plastic storage bin. Any kind of container that holds water will do for hydroponics, as long as it is clean and made of a material that is safe for food (a material that will not leach harmful chemicals into the water).

Consider the following when choosing a container for your hydroponic system:

Size

The size of the plants you&#;d like to grow should dictate the size of your container. For example, if you&#;d like to grow a tomato hydroponically, consider the size of the canopy of a mature tomato plant, and choose a container that is approximately the same size.

The seed packet should tell you how large the plant will be.

If you&#;d like to grow multiple things in one container such as multiple heads of lettuce, a wider container will be necessary.

Lid or flotation device

The container in your hydroponic system will hold the water and nutrients, but something needs to support the plant.

When using a bucket, the most common support structure for plants is simply the lid of the bucket with holes drilled through it for the plants.

If you do not have a lid, another common practice is to use extruded polystyrene (sheets of insulation). You can either rest the polystyrene sheets over the top of the container or float them directly on top of the water.

If you choose to float the sheets directly on the water, it&#;s a good idea to provide some extra support (such as PVC tubes) to hold the polystyrene sheet as the plants become heavier.

Cost, aesthetic appeal, and space efficiency

If you would like your hydroponic system to look more attractive than just a bucket, an easy solution is to build a frame around it such as the Hydroponic Salad Table.

If you&#;re hoping to expand your system to have multiple containers in use at the same time, you can increase space efficiency with adjustable wire shelves, with plastic totes or buckets on each shelf.

These additional factors are not necessary and will increase the cost, but can make your set-up more efficient and attractive.

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