GT100 Grow Tank NFT (Nutrient Film Technique)
£170.00
Quick Answer
NFT (Nutrient Film Technique) is a hydroponic growing system where a shallow, continuously flowing stream of nutrient solution passes over plant roots inside specially designed channels. The constant supply of water, nutrients and oxygen encourages rapid, healthy growth while using very little water or growing media.
Nutrient Film Technique, commonly known as NFT, is one of the most efficient hydroponic growing methods available. Plants are supported in gently sloping channels while a thin film of nutrient solution continuously flows beneath the roots before returning to a central reservoir for recirculation.
Unlike Deep Water Culture or Flood & Drain systems, NFT keeps most of the root mass exposed to oxygen while maintaining constant access to water and nutrients. This makes it particularly popular for leafy greens, herbs, salad crops and fast-growing vegetables.
Our NFT range includes genuine GT Gro-Tank systems suitable for hobby growers, commercial cultivation, schools and research facilities.
New to hydroponics? Visit our Indoor Growing & Hydroponics Explained guides to learn how NFT compares with other hydroponic systems.
Roots receive a constant supply of nutrient solution throughout the day.
Most of the root system remains exposed to oxygen for healthy root development.
Recirculating nutrient solution minimises water and fertiliser waste.
Perfect for everything from home growers to commercial hydroponic production.
NFT systems circulate nutrient solution from a reservoir through growing channels using a small water pump. The channels are installed with a slight slope so a thin film of nutrient solution continuously flows across the bottom before returning to the reservoir.
Plant roots grow into the channel where they absorb water and nutrients directly from the flowing solution. Because only the lower section of the roots touches the nutrient film, the upper roots remain exposed to oxygen, creating an ideal balance between hydration and aeration.
This continuous circulation provides stable growing conditions while using considerably less water than many traditional cultivation methods.
| System | Best For | Growing Media | Water Efficiency |
|---|---|---|---|
| NFT | Leafy greens & herbs | Minimal | Excellent |
| DWC | Large plants | Clay pebbles | Excellent |
| Flood & Drain | General growing | Various | Excellent |
| Drip Systems | Coco & soil | Various | Very Good |
NFT systems excel when growing lettuce, basil, spinach, rocket, pak choi, coriander and other leafy crops. Many growers also use larger GT Gro-Tank systems for strawberries, peppers and smaller fruiting plants.
Because root space inside the channels is limited, NFT is generally less suitable for very large plants that develop extensive root systems unless commercial channels are used.
When selecting an NFT system, consider the number of plants you intend to grow, the available floor space and the size of the crop at harvest. Smaller systems are ideal for propagation and home growers, while larger GT Gro-Tanks are designed for higher production and commercial growing.
Keeping channels, reservoirs and pumps clean is essential for reliable operation. Regularly check pH, EC, water temperature and pump performance to ensure plants receive a consistent nutrient supply.
Roots should be inspected periodically to ensure channels remain free flowing and that excessive root growth does not restrict nutrient circulation.
NFT stands for Nutrient Film Technique, a hydroponic growing system that continuously circulates a shallow film of nutrient solution over plant roots.
Yes. Modern NFT systems are simple to operate and are an excellent introduction to recirculating hydroponics.
Leafy greens, herbs, lettuce, basil, spinach, rocket and similar fast-growing crops perform exceptionally well.
Very little growing media is required. Plants are usually supported using net pots and small starter plugs or cubes.
Most NFT systems run continuously while lights are on, providing constant access to water, nutrients and oxygen.
Absolutely. NFT is one of the most common hydroponic systems used with modern full-spectrum LED grow lighting.
Whether you're growing fresh herbs at home or building a commercial hydroponic facility, Doctor Blooms can help you choose the ideal Nutrient Film Technique system for your growing space.
Call 01279 501857 or visit our Bishop's Stortford showroom for expert advice.
