Can't fish feel the pressure of water floating at the bottom of the ocean?

Water is heavier than air. As the water goes deep into the sea, water is pushing from all sides. At a depth of 4 feet, water pressure increases to 1.5 kilograms per square inch.

Our body has an atmospheric pressure of about 5 kilograms per square centimeter. But we do not know it because our body has the power to withstand this pressure, just as the body of a fish can withstand the pressure produced by the bottom of the ocean and cannot be suppressed. The bodies of every aquatic organism are made to withstand extreme pressure. The effect of pressure on solids, gases and liquids is different.