What vegetables to grow in aquaponics?

In this brief guide, we are going to answer the question, “What vegetables grow in aquaponics?”. We will discuss in-depth how aquaponics work and the types of vegetables that grow well in aquaponics. We will also look at the benefits of using aquaponics to grow vegetables.

What vegetables to grow in aquaponics?

Many vegetables like, tomatoes, peppers, cucumbers, beans, squash, peas, radishes, and eggplant grow well in aquaponics

Among the least likely plants to grow well in aquaponics are: large onions, carrots, potatoes, sweet potatoes, other large root vegetables, and corn.

What is aquaponics and how does it work?

Aquaponics is a term that combines the words aquaculture (fish farming in a contained environment) and hydroponics (growing plants in a water-based environment). Aquaponic is a partnership between plants and fish. In aquaponics, the waste is used by the plants that grow in the water as a nutrient source and a natural fertilizer. The fish drink the water that the plants purify. It’s a win-win situation.

Aquaponic systems range in size from small domestic units to big commercial units. They are commonly used in organic farming.

What vegetables grow well in aquaponics?

The following vegetables thrive in aquaponic systems.


Tomatoes Surprisingly, tomatoes grow nicely in aquaponics systems. The major benefit is the ability to carefully control the air temperature, keeping it as close to the ideal for tomato growth as possible. Tomatoes, on the other hand, are famous for attracting insects that can be particularly difficult to eradicate in a system that doesn’t let for pesticides or other harsh chemicals since they can harm the fish and microorganisms in the system.


In traditional soil systems, peppers can be difficult to cultivate. This is owing to their need for a lot of sunlight every day and how sensitive they are about the amount of water available. Peppers can thrive in an aquaponics system. It’s important to note that aquaponic peppers require a water and drainage system with a siphon.


Cucumbers are a great plant to add to an aquaponic system because they prosper there. However, there are some things to consider to make them more suitable for beginner gardeners.

To begin with, their roots can grow rather large, so you’ll have to pay attention to them to make sure they don’t spread too far and block the water pipes. Second, they succeed at storing nitrogen, limiting other plants of essential nutrients. Cucumbers should be planted 30 to 60 cm apart for this purpose.


There are many various varieties of beans that can be grown in an aquaponic system.  They may not be as well-known as other aquaponic veggies, but they perform just as well as, if not better than, the majority of them. Beans should be grown in water that is 65°F to 80°F and has a pH of 6.0 to 6.5. The majority of types require 12 hours of sunlight every day, while some may require a little more


Squash is another vegetable that is commonly mistaken for one that shouldn’t be cultivated in an aquaponic system, although it works rather well. Squash requires water that is 65°F – 72°F and has a pH of 5.0 – 6.5. For optimal growth, 14 hours of light a day are required.

The average duration between planting and harvesting is 40 to 60 days.


These lovely little green fellas are another one of the less well-known yet easiest-to-grow aquaponic plants. They flourish in water-based grow systems, despite being more commonly cultivated in soil. Peas should be grown in water that is between 65°F – 80°F and has a pH of 6.0 – 7.0. In terms of light, 12 – 14 hours is enough.


Radishes are among the few root crops that can be grown in an aquaponic system. These reddish-pink delicacies thrive in aquaponic systems rather than in the ground. Radishes must be cultivated in water that is between 50 and 65 °F. A pH of 6.0 – 7.0 is also required, as well as 6 – 10 hours of light each day. 1 month is the average duration between harvests.


While eggplant may not be the first vegetable that comes to mind when thinking about which aquaponic crops to cultivate, it should be near the top of your list. In most aquaponic systems, it performs well. Eggplants require water with a pH of 5.5 to 6.0 and a temperature of 65°F – 75°F. They need 8-10 hours of light daily. The crops can be harvested in 60-70 days.

Here’s a guide to purchasing the best aquaponic kits for all types of fruits and vegetables.

What are the benefits of aquaponics?

  • Food is grown year-round 
  • Crops are organic and nutritional
  • It saves water 
  • There is no soil, fewer pests, and no weeding
  • Accelerated plant growth
  • Reduces the carbon footprint of the planet
  • Supports a self-sufficient way of living

Other FAQs about Vegetables that you may be interested in.

Do aquaponic vegetables taste good?

What can I use instead of vegetable shortenings?

What can I substitute for fennel seeds?

What are the best veggies for aquaponics?


In this brief guide, we answered the question, “What vegetables grow in aquaponics?”. We discussed in-depth how aquaponics work and the types of vegetables that grow well in aquaponics. We also looked at the benefits of using aquaponics to grow vegetables.

If you have any questions or comments, please let us know.