How to choose a hydroponic system

In this blog: an overview of 5 key systems, ideal for different experience levels, budgets and plant types.

1. Kratky Method (requires no energy)

Description:
Static system without a pump or aeration – plants are placed in lids above a nutrient-solution reservoir. As they grow, the solution level drops and an air gap forms, stimulating “oxygenated roots”†. Suitable only for leafy vegetables and herbs.

✅ Advantages:

• No electricity, pumps or timers are needed.
• Very low maintenance, easy to get started.
• Economical — ideal for home hobbyists.

❌ Disadvantages:

• For small plants only.
• No option to top up the solution during the cycle.
• Not suitable for commercial use.

2. Deep Water Culture (DWC) Method

Description:
Plants are held in baskets above oxygen-rich nutrient solution. Aerators and a pump in the water provide a constant flow.

✅ Advantages:

• Easy installation and maintenance.
• High oxygen level and continuous feeding.
• Suitable for larger (but not runner-type) plants as well.
• An excellent choice for beginners.

❌ Disadvantages:

• Requires an electric pump and air compressor.
• Higher initial costs.
• Requires monitoring of pH and temperature.

3. Drip System Method (drip system)

Description:
Nutrient solution is supplied drop by drop through a network of drip tubing, with excess returned to the reservoir or discarded.

✅ Advantages:

• Precise nutrient-solution dosing.
• Automation and flexibility.
• Effective for almost all plant types.

❌ Disadvantages:

• Higher installation investment.
• Requires reliable filtration and pH control.
• Potential for clogging.

4. NFT (Nutrient Film Technique) Method

Description:
Plants are placed in channels through which a thin layer (filmuLieu) of nutrient solution flows. The roots touch the flowing film while their upper part remains dry.

✅ Advantages:

• Excellent watering and feeding efficiency.
• Oxygen is available directly from the air.
• A suitable system under optimal conditions.

❌ Disadvantages:

• Requires an electric pump and stable power supply.
• Risk of clogging and pH increase during recirculation.
• Does not work well with tall plants.

5. Aeroponics Method (Aeroponic System)

Description:
Roots hang in an enclosed chamber and are periodically moistened with a fine spray mist of solution. Maximum oxygen levels and minimal water consumption.

✅ Advantages:

• Best water and nutrient efficiency.
• Optimal air circulation around the roots.
• Excellent for vertical crops and limited spaces.

❌ Disadvantages:

• Highest initial costs.
• Complex maintenance and a need for precise cycle control.
• Sensitive to power outages.

? Which system is right for you?

Level / needs	Recommended system
Beginner / small garden / low budget	Kratky or DWC
Intermediate / home garden with high control	Drip System or NFT
Professional / vertical / maximum yield	Aeroponic System

When choosing, consider:

• Experience level
• Budget for setup and maintenance
• Plant type (Kratky is ideal for leafy greens, not tomatoes or cucumbers)
• Energy access / stable power supply
• Space constraints

? Conclusion and next steps

Hydroponics offers a sustainable and energy-efficient way to garden at home and professionally. With the right system for your experience, goals and budget, you can achieve a substantial yield using minimal resources.

Start with the Kratky method for simplicity or the DWC method for modest expansion. If you seek greater control and automation, choose Drip or NFT. If you want maximum efficiency and space is a priority, the aeroponic system is for you.

Choose quality nutrient supplements from the Fertilisers category — they provide optimal nutrition during Growth § Flowering and are compatible with all systems. ➡️ Order here