Growing plants without soil might sound unusual at first, but the principle behind hydroponics is fairly straightforward. In hydroponics, water takes on a much bigger role, carrying the nutrients plants need while a carefully chosen system provides the structure and support roots would normally get from soil. The name itself comes from the Greek hydro (“water”) and ponos (“work”).

But what actually goes into making a hydroponic system work? From growing media and nutrients to pumps, pH meters and indoor lighting, this guide breaks down the equipment and explains how each part fits into the wider setup.

What Equipment Does a Hydroponic Setup Need?

Setting up hydroponics does not mean buying every piece of equipment on the shelf. The right setup depends on how you plan to grow, the space you have and the way your chosen system delivers water and nutrients.

That is why it is worth looking at the role of each component before choosing your hydroponics supplies.

Growing system and containers

The system you choose determines how plants are supported and how the nutrient solution reaches their roots. Your setup may include:
A growing system suited to your chosen method
Containers that provide the right support for the plants
Growing medium

Some hydroponic systems use a growing medium to support the roots. Depending on the setup, this may include:
Clay balls for root support
Perlite as part of a suitable growing mix
Rockwool for certain hydroponic or propagation setups
Nutrients

Plants receive the elements they need through the nutrient solution rather than soil. Your setup may involve:
Hydroponic nutrients suited to the growing method
Nutrient solution prepared according to the product instructions
Water or air pumps

Some systems need equipment to move or aerate the nutrient solution. This can include:
A water pump for circulating nutrient solution
An air pump where aeration is required
pH and EC monitoring

Monitoring the nutrient solution helps you understand its condition. Common options include:
A pH meter or test kit to check acidity
An EC meter to indicate nutrient strength
Lighting and ventilation

Indoor hydroponic setups may need equipment to manage the growing environment, such as:
Suitable grow light where natural light is insufficient
Ventilation and airflow equipment to help manage conditions indoors

Getting the Right Hydroponics Supplies in New Zealand

A hydroponic setup works best when each component has a clear role and suits the system around it. As a Kiwi-owned and operated hydroponics and indoor-growing retailer with over 10 years of industry experience, Hydro Warehouse Ltd offers a complete range of hydroponics supplies in New Zealand alongside practical advice needed to put a compatible setup together.

See the range for yourself at the Manukau store, or shop online from anywhere across New Zealand.