Aquaponics in frames

Staff Correspondent | Update:

Aquatic tank with fish. Filtered water flowing towards the aquatic animals. The photo was taken from Bangladesh Agricultural University in Mymensingh on 31 May by Nusrat NowrinAquaponics is a combination of aquaculture, raising aquatic animals, and hydroponics, soil-free method of farming. Plants and fish are raised in a symbiotic environment in aquaponics where the excretion of the aquatic bodies is fed to the plants and the plants naturally filter the waste water for the aquatic animals.

Aquaponics requires about only one-tenth water of that used in traditional soil-based agriculture. It is organic agriculture. Plants and fish could be raised on rooftop, veranda or spare places in the city and the rainwater can be used.Tomatoes are seen in an aquaponics plant. With the ripe ones being harvested, new stems will sprouted. The photo was taken from Bangladesh Agricultural University in Mymensingh on 31 May by Nusrat Nowrin

For the plant all you need is a plastic tank, brick chips or gravel, electricity, a pump and the aquatic animal's tank. Used plastic bottles can be used again for plants. An electric pump is used for siphoning. Another water pipe releases the filtered water from the plant bed into the fish tank.

Tomato, lettuce, strawberry, mint, okra, different types of spinach, papaya, eggplants, gourd, 'potol', cucumber, broccoli, pumpkin, spinach, beans and many more could be farmed in this method.

Among the fish, tilapia, catfish, koi, pangas and other local varieties can be bred. But tilapia is less stressed by environment, and can grow at the normal pace, making it a favourite with farmers.Potols are hard to grow generally. But these green potols look quite successful to meet the challenge in an aquaponics farm. Photo: Nusrat Nowrin

The main difference between soil-based and the soil-less farming is the environment-friendly recycling options.

In an aquaponics farm the harvest of plants and vegetables is continuous. Once the tomato or okra yield fruit, new stems would sprout and later provide more.”

As the farming is carried out in an organic method without pesticides, it is organic and healthy. You can plant decorative plants too.

The joy of farming is an added beauty to your urban life. You can have greenery on your rooftop garden. The pleasure of the new buds will enliven you every morning.

Prothom Alo captured different segments of an aquaponics plant from Bangladesh Agricultural University in Mymensingh on 31 May.

An aquaponics fish tank with tilapia. Tilapias are less stressed by environmental change making it a favourite with aquaponics farmer. The photo was taken from Bangladesh Agricultural University in Mymensingh on 31 May by Nusrat Nowrin

Several water-pipes carrying the water with fish waste into the fish tank. Photo: Nusrat Nowrin

Water is continuously being recycled and returned to the mother tank. Photo: Nusrat Nowrin

A pump set in the aquaponics plant. Power supply is crucial to run the process. If not available, hand siphoning from time to time is to be done. Photo: Nusrat Nowrin

Aquaponics is a soil-free method. The roots of the plants, as in the photo, take in necessary nutrition from the fish waste in the water . Photo: Nusrat Nowrin

Eggplants grown in an aquaponics farm. The organic vegetables are fresh, healthy. Photo: Nusrat Nowrin

Okra on a rooftop aquaponics farm. Without any pesticides, the okra has kept off insects and have grown new harvest along with flowers. Photo: Nusrat Nowrin

Dhundol in a rooftop aquaponics farm. A wide range of vegetables can be grown in aquaponics. The photo was taken from Bangladesh Agricultural University in Mymensingh on 31 May by Nusrat Nowrin

Laal shak (red spinach) in an aquaponics farm on a terrace. The photo was taken from Bangladesh Agricultural University in Mymensingh on 31 May by Nusrat Nowrin

Spinach in the aquaponics farm on terrace in Bangladesh Agricultural University in Mymensingh. The photo was taken on 31 May by Nusrat Nowrin

A plastic drum has been used in aquaponics farming.  Photo: Nusrat Nowrin

Leafy plants are easily grown in aquaponics farm. The photo was taken from Bangladesh Agricultural University in Mymensingh on 31 May by Nusrat Nowrin

Chillies can be grown and harvested over the year just when you need fresh ones. Photo: Nusrat NowrinKolmi are one among the various leafy plants grown in the aquaponics farm. Photo: Nusrat Nowrin

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