10am-12pm and 3-4pm. The water temperature for feeding is 12-32 degrees Celsius, when the water temperature is high, the seven star mackerel is more active, so the seven star mackerel in the river is good to catch at 10am-12pm and 3-4pm. The seven star mackerel lives in the water temperature of 1-38 degrees Celsius, the best growing temperature is 15-28 degrees Celsius, likes to live in the dark place cave, set, is living in the mountainous areas of the streams, but also live in the river as well as the gutter.