A 1.5-meter fish tank can raise 3-5 Sai blue fish, because it is a large tropical fish that grows very fast and cannot be cultured too densely.
If you want to raise Sai blue fish, you need to pay attention to the water temperature and pH. 23 to 28 degrees Celsius is their acceptable range, and the pH value should be kept around 8, because the water in Tan Lake is more alkaline than the other two lakes. This is also the basic water quality condition for raising Say bluefish.