The country is gifted with the vast resource in terms of water like rivers, tanks, lakes etc. A fish can be defined as an aquatic creature, which is a cold-blooded vertebrate and has gills throughout life and limbs if any are in form of fins. There are nearly 2500 species out of which 930 are freshwater and the rest are marine. Breathing in depth of the water bodies across all over the world is really amazing, charming and interesting. The fishes may come in all the aspects of different shapes, colors, and their sizes. Nearly 450 million years the fishes have in attendance, also before the occurrence of the dinosaurs the fishes have swum in the sea. This article is going to make aware the types of fishes, interesting and unknown aspects of the fishes in the sea.