Cyvora Aquaponics

Fish and vegetables, grown together in one loop.

Aquaponics raises fish and grows plants in the same recirculating water. We design, build and support systems for homes, schools, institutions and farms across Uganda, and we train the people who run them.

Round fish tanks with leafy plants growing above them inside a Cyvora greenhouse.
Working system · Cyvora greenhouse

How it works

How it works, in three steps.

Diagram D3: fish produce waste, bacteria convert it into plant food, plants clean the water, and the water returns to the fish.123FISHBACTERIAPLANTSCLEANWATER123FISHBACTERIAPLANTSCLEANWATER
  1. Fish produce waste.

    Their waste is rich in ammonia, which is harmful to fish if it builds up.

  2. Bacteria turn waste into plant food.

    Beneficial bacteria convert the ammonia into nitrates, a nutrient plants absorb readily.

  3. Plants clean the water.

    As they feed, the plants filter the water, which flows back to the fish.

Read the full guide to how aquaponics works

Comparison

Why aquaponics?

Compared with other ways of growing food, aquaponics solves problems they each leave behind.

Why aquaponics?
Soil gardeningConventional hydroponicsConventional fish farmingAquaponics
NutrientsNeeds regular fertilizerNeeds bought, manufactured nutrient solutionsNutrient-rich wastewater must be removedFish waste supplies the plants' nutrients
WaterMuch is lost to soil and evaporationRecirculates, but solutions are periodically replacedWater is regularly dischargedWater recirculates and is topped up to replace evaporation and plant uptake
OutputPlants onlyPlants onlyFish onlyFish and plants from the same system
SpaceNeeds good soil and landCan use any flat spaceNeeds ponds or tanksCan use any flat space, including rooftops and yards

Aquaponics← Cyvora

Nutrients
Fish waste supplies the plants' nutrients
Water
Water recirculates and is topped up to replace evaporation and plant uptake
Output
Fish and plants from the same system
Space
Can use any flat space, including rooftops and yards

Soil gardening

Nutrients
Needs regular fertilizer
Water
Much is lost to soil and evaporation
Output
Plants only
Space
Needs good soil and land

Conventional hydroponics

Nutrients
Needs bought, manufactured nutrient solutions
Water
Recirculates, but solutions are periodically replaced
Output
Plants only
Space
Can use any flat space

Conventional fish farming

Nutrients
Nutrient-rich wastewater must be removed
Water
Water is regularly discharged
Output
Fish only
Space
Needs ponds or tanks

Who it's for

Built for your space and your goals.

  • Households

    Fresh fish and vegetables at home, in a yard or on a rooftop.

  • Schools

    A working science laboratory that also feeds students.

  • Institutions

    Hospitals, churches, training centres and other kitchens that need a steady supply of fresh food.

  • NGOs and community groups

    Food security and livelihoods projects that train as they produce.

  • Commercial growers

    Modular systems designed around a business plan and a market.

What we offer

Three ways to work with us.

Why Cyvora

Aquaponics from a biotechnology company.

We don't just sell tanks and pumps. Cyvora works with biology every day, from algae cultivation to fish feed, so our systems are designed around the living part: the fish, the bacteria and the plants. After installation we stay available, with feed, advice and troubleshooting.

Site visits

See a working system.

Visit one of our working systems near Kampala and see aquaponics in action.

Book a site visit

FAQs

Questions before you start.

Which fish and crops can I grow?

In Uganda, tilapia and African catfish are common choices, grown alongside leafy greens such as sukuma wiki, lettuce, spinach and amaranth (dodo), plus herbs, tomatoes and peppers.

Does it need electricity?

Yes. Pumps and aeration need power. We can design for grid or solar supply.

How much space do I need?

How much daily work is it?

How much does it cost?

Do you maintain systems after installation?

Ready to start growing?

Tell us about your space and what you want to grow. We'll recommend the right system.

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