How to raise fish is a profound knowledge. If you are not careful in free-range breeding, it is easy for the fish to run into other fish ponds. Captivity is a feasible method, with a certain degree of relaxation. You cannot raise fish in small bottles, otherwise it will have no living space. If you raise it in a whale tank, it will be happy and forget about its owner. Fish farming requires careful attention and a lifetime of management. One day, a man named Yang Ruibai discovered a small fish and kept her in his pond and never released it again.