Fish can hear sounds, so fish can also feel music. However, sudden sounds or loud sounds that exceed decibels will frighten the fish, which will affect the fish's eating and normal growth. If there is some lyrical and slow music, the fish should like it if the volume is appropriate. In fact, the noise in the fish tank is still quite loud. The sounds of the filter, water pump, and proofing pump are all propagated in the water. It is difficult to judge how loud the fish can hear it. You can do this music experiment and observe it for a period of time to see the changes in the fish. You may even achieve unexpected results. I wish you success!