Get hip to the game: Ebb and Flow – the smart way to hydroponics

Get hip to the game: Ebb and Flow - the smart way to hydroponics

Yo, what’s good my fellow plant lovers? I’m here to drop some knowledge on ebb and flow hydroponics, a dope system that’s perfect for all you novice-to-intermediate growers out there. This system is low-cost, high-efficiency, and will have your plants growing like crazy without you needing to micromanage every little detail.

So, what exactly is ebb and flow? It’s also known as flood and drain, and it basically involves potting your plants in an inert growth medium that doesn’t provide any nutrition but helps anchor the roots and drain slowly. These pots are then placed in a growing tray above a nutrient-rich water reservoir. The water is pumped from the reservoir into the tray, flowing through the pots and providing water and nutrients to the roots. Once the flooding phase is over, the water drains back slowly into the reservoir through gravity, leaving the roots dry and oxygenated. This “fast and feast” system allows plants to guzzle water during the draining phase and feast on oxygen when their roots are dry during the flooding phase.

Now, you might be wondering what makes this system so great. Well, once you set it up, it pretty much takes care of itself. It’s easy to maintain and works in a mostly automated way. Plus, it’s cheap and fairly easy to set up. The limited exposure of the plant roots to the nutrient solution prevents the necessity of temperature control, water oxygenation, and other complicated factors common to other hydroponic systems. It’s also known for its modesty – it’s quiet, takes up little space, and doesn’t require much energy.

But, like any system, there are some disadvantages you should be aware of. The major one is that if something goes wrong, you could ruin your whole crop. This system needs monitoring, especially with new, untested equipment. If there is a problem, you’ll need a human brain to solve it! Another disadvantage is that this growing method can lead to root diseases and nutrient insufficiency if you neglect sanitation and maintenance. Be sure to replace your nutrient solution weekly and clean all parts of the system between grows.

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Now that you know the pros and cons of ebb and flow hydroponics, let’s talk about how to set up your own system.

What You Need:

– Reservoir with lid

– Growing tray to sit above the reservoir

– Rubber piping

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– Water pump with timer (a garden pond pump works)

– Plants potted in an inert grow medium (such as coarse sand, clean gravel or Rockwool cubes)


1) Drill two holes in the lid of the reservoir; drill another two in the base of the growing tray lined up directly above those of the reservoir.

2) Connect two of the holes with an overflow tube that sits above the expected water level in the growth tray and will catch excess water if flood levels run too high.

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3) Connect the other two holes with black tubing; this tube will act as both flood pump and drain. Attach the head of the pump in the reservoir to the mouth of this tubing.

4) Place the potted plants in the growing tray. The pots should be about twice as tall as the edge of the growing tray.

5) Set the timer on the pump. Plan for 15-minute flooding periods followed by 15-minute draining periods.

How often to flood and drain depends on your grow medium and climate. In cooler climates or with a slower-draining medium like Rockwool, two floods a day should do the trick. In warmer climates or with fast-draining media, you may go up to four floods a day or even six.

So there you have it – ebb and flow hydroponics is a dope system that’s perfect for those looking for an achievable challenge in growing cannabis. Just remember to monitor your system regularly and maintain proper sanitation to avoid any issues. Happy growing!

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