A family-based fish and vegetable growing system tested in the crowded conditions of the Gaza Strip has proved such a success that some families want to turn food production into small businesses. An FAO project funded by Belgium introduced the soil-less or aquaponic food production units on the rooftops of 15 mostly poor and female-headed households in Gaza three years ago. In the most successful cases, families were able to grow enough tomatoes, peppers and eggplants during three summer months to meet all their household needs, plus up to 20 kilos of fish during a nine-month growth cycle.