In order to successfully breed arowana, a male and a female fish are first put into a breeding tank, some floating aquatic plants are planted in the tank to facilitate the male fish to nest, and a little bottom sand is laid on the bottom. Before using in the tank, the aquatic plants should be disinfected, and the fish tank should be placed in a dark place to give arowana a comfortable breeding environment. Fish put into such an environment must be fed with live bait, such as bumper shrimp, fish worms, small fish and shrimp fry, rotifers, small blood worms and so on. The blue dragon with the above conditions can breed in about a month. Note, 1, the aquaculture water should be tap water that has stood for about 3 days. 2. You can put a few solid oxygen in the cylinder to sterilize and increase dissolved oxygen. Never put oxygen equipment. Silence is the most important. 3. You can put a small apple snail in the young fish tank to help clean up the food residue. 4. The optimum temperature in the cylinder should be 26 to 27 degrees.