As they grow older, less expensive feed can be used. Although an exotic species, trout is becoming a more popular dietary item for people in Taiwan because of its delicious flesh and soft scales. The average price is US $ 5.00 per catty.
它的肉是黃蛋色的；魚鱗很軟，故煮食時不必刮鱗；卵的直徑可達 0.5cm，比一般魚卵大得多；它的腸子粗短，有點像雞腸；這些都是與其他魚類不同的地方。