Aquaponics 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.
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.