Do you know that "fish" has no "s" or "es" ?

I got two fish from my uncle. My uncle's hobby is fishing. He goes to sea to fishing with a boat. He has a driving license of a small ship because he loves sea and fishing. Two fish which I got from my uncle are about 30 cm. I am surprised by it. Actually, I put on a picture of two fish but, I forgot to take a picture. Overlook my mistake!! However, I like to draw pictures. So I use a computer and I will draw its picture.