Worst Plants For Aquaponics

Aquaponics is a relatively new practice in which aquaculture (raising fish) and hydroponics (the soil-less growing of plants) are combined into one integrated system. The combination produces higher yields than either system used on its own, but there are some plants that don’t grow well at all in an aquaponics system. Here are the worst offenders:


Amaranth is a water hog. It’s also not great for your plants’ health in the long run, and you’ll find it difficult to harvest its seeds without damaging them. This means that you’ll have to grow more than one crop of amaranth when you start an aquaponics system with this plant as a part-time crop rotation option.


Artichokes are not suitable for aquaponics. They require a lot of water and sun, both of which can be problematic in an aquaponics system.


Asparagus is a perennial plant, which means that it will keep growing back every year and needs to be harvested every few years. Unfortunately, asparagus doesn’t grow very well in aquaponics because of the high nitrate levels coming from fish waste. This can lead to problems like stunted growth and smaller stalks than normal.

Broccoli and Cauliflower

The first two crops you should avoid planting are broccoli and cauliflower. Both of these plants belong to the same family as cabbage, and they have similar requirements.

Broccoli and cauliflower are not suitable for aquaponics because they both need cold temperatures to grow healthfully. For a long time, it was assumed that this meant the plants would be able to withstand freezing temperatures. However, recent research suggests otherwise: even though some varieties will die in extreme cold weathers (as low as 10°F), other varieties can still grow well enough to produce fruit even when exposed to temperatures as low as 32°F—a temperature that’s comfortable for humans but deadly for most plants! This means you have no way of knowing how much damage your broccoli or cauliflower might sustain if exposed to sub-freezing temperatures; if there’s one thing we learned from global warming it’s that climate change is unpredictable and we should expect more unpredictable weather patterns in the coming years.*

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Seed potatoes

It’s time to talk about the worst plants for aquaponics. The first on our list is seed potatoes.

Seed potatoes are not a good choice for aquaponics because they’re not edible, and they’re also not suitable for this type of system because they take up more room than you need. Your fish will be able to grow much faster if you don’t have to worry about feeding them any extra food; plus there’s only so much space in your grow bed anyway!


Corn is a bad choice for aquaponics because it requires a lot of nutrients and grows to be very large. Corn is also a very competitive plant that will take up valuable space in your aquaponics system. If you do choose to grow corn, make sure that you have plenty of space available and that your plants are spaced out so they don’t compete with one another.

Sweet Potatoes

Sweet potatoes are not suitable for aquaponics. They are a root vegetable, and therefore do not work well in an aquaponic system. Sweet potatoes do not provide enough nutrients to the fish, which means that they will not grow properly or thrive in your system.

Additionally, sweet potatoes are grown primarily for food consumption rather than medicinal purposes. While this may be fine when you’re growing them on land or in soil, the benefits of sweet potatoes as a crop have less of an impact when grown within an aquaponic system where your goal isn’t necessarily just to grow delicious vegetables but also to provide medicine to your fish.

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These plants are not suitable for aquaponics.

It is important to keep in mind that the plant you choose to grow is going to be a major factor in determining the success of your aquaponics system. While there are lots of plants that can grow well in an aquaponics system, there are also some plants that just don’t belong there. In this article, we’ll take a look at some of those plants and explain why they’re not suitable for aquaponics.

The first plant on our list is eucalyptus trees. These trees have very large leaves and produce a lot of shade, which isn’t ideal for most other plant life because it blocks out light from reaching other plants below them within your system (you want all your plants to get plenty of sunlight). They also tend not to tolerate low-nutrient conditions very well; however this isn’t such a big problem since they require lots of nutrients! You should avoid planting any eucalyptus trees near your fish tanks if possible because their roots exude chemicals called terpenes which repel most aquatic animals including fish themselves!

In conclusion, it is important to understand that not all plants are suitable for aquaponics. The above-listed plants should be avoided at all costs as they tend to consume large quantities of nutrients and waste a lot of natural resources. If you are serious about growing safe, healthy, and nutritious produce in an aquaponics farm, it is advisable that you stick with the recommended leafy greens such as kale and spinach. They will deliver the best results in your hydroponic farm while costing very little in terms of water, nutrients or space.

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