Nutrient Film Technique (NFT) Hydroponics System Tutorial

Nutrient Film Technique (NFT) Hydroponics System Tutorial

A simple overview of the Nutrient Film Technique (NFT) for hydroponics – one of the most popular ways of growing plants hydroponically. It’s great for growing commercial basil, lettuce, and other herbs, and is also popular for home hydroponic growers due to the simplicity of setting it up.


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What do you think?


Written by Aleksandar

Video MakerContent AuthorYears Of Membership


  1. Maybe I missed it. What about a pipe on a slope, a water pump and a reservoir = nutrient or = film? How does it differ from the many other hydroponic setups that are practically identical that are not referred to as the "nutrient film technique". Throw an old dog a bone 'n explain how this name came into being.

  2. Surely the return water splashing into the reservoir will put oxygen back into the water? I do that with my home brewing without the need of an air pump to keep the yeast happy!

  3. I see a mix of methods when people use NFT, so I have a few questions. When the water falls back into the reservoir it creates little air bubbles, that's not enough to oxygenate the water? If you are using a timer to intermittently cut the water supply from the roots, wouldn't that be enough to prevent the plant from drowning?

  4. I would suggest some type of physical filter on the return from the NFT to catch roots and crap that will pollute your reservoir, also a UV light to kill bacteria in the reservoir.

  5. Hello am Eduardo from Perú, am a beguiner in this culture, I want to know about my box, a friend of mine, gave me one as a present, and I don't know how yo use it. If you give me a Phone number, I can call you to learn more about it. Thanks for your time.

  6. There is a BIG mistake in every other diagram around, including this video. The air pump should NEVER sit below the waterline of the container, especially if the highest point of the air line is not at least a foot over the water. An air pump can fail and the water can siphon back into the pump when you are trying to see what's going on. Air pumps are not always electrically safe if the water gets inside and you could have a very nasty shock. Stay safe, set the air pump higher than your reservoir.

  7. @ Epic Gardening – Hi, What about the nutrient? We just add it periodically directly into the tank? Will be appreciated if w can have an idea on the amount to be added.

  8. I set up my NFT last year and had great results, especially with the large leaf veggies. Regarding your comment about the timer: I didn't have one at first and added it later when I started to get root-rot. The continuous flow of water around the root mass didn't allow for enough oxygenation of the root fibers. I now have it on a timer that goes on and off many times daily. The rate depends on the time of year and temperature. This allows the roots in the center of the root ball to recover several times a day. I haven't used the air-stone, but I'm probably going to try one. Cheers!

  9. hello. im trying to find what kind of materials are used in a hydroponic system and i was wandering if you could tell me some if you know. thanks!


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