This diet serves to quickly increase the fish's weight. After half a year, the fish, which have no small bones and whose meat is delicious, are ready to be sold.
張福根說，一條魚苗，經過半年的養殖，就可成長到一台斤重，這是出售的標準重量。他又說，成熟的紅尼羅河魚沒有小刺，肉味似石斑魚，沒有土腥味，最適合清蒸，很多人吃過一次就愛上了。