he decided the only way to find out was to swim up and up untill he found the top. so he swam up and up for what seemed like years untill the water became clear and fresh and he could see what was around him. he met many new fish that he had never even imagined could exist but they just ignored him for to them it was all very normal.
eventually the fish reached the surface and he couldn't believe what he saw, the sea had stopped and there was just emptyness. the little fish marvelled at this openess for he had never experianced it before, he had lived in water all his life.
just think if open space had been so amazing to the fish what he would think to the whole world and universe. But the fish thought he had just experianced everything that exsisted and went down back th the depths of the dark dingy sea.