When Ichthy tells others that he is off fishing, most think that he is lazy basking in the sun with a pole in the water, but, that is the farthest thing from the truth.
When he goes fishing it's different, because when he finds a school of fish it is not to catch them. He gathers their stories and tales (tails*lol) instead. And because they are willing to share with him their adventures, he gives back some of his talents to them. Today he is teaching the fish their scales (musical scales that is).
Others see Ichthy sitting at the docks, playing his fiddle, but if you were to stand closer, you would find that the fish (and even a mermaid or two) might be seen taking in the music and learning a new song to sing.