The swim bladder is the organ that keeps the fish balanced and upright, is an internal gas-filled organ that contributes to the ability of a fish to control its buoyancy. It is also known as the gas bladder, fish maw or air bladder.
Actually it is called a balance - scales are in music and on fish.
They have organs called swim bladders, which balance the fish and keep them from floating.
For most fish, the fins help maintain balance while swimming.
a collection of fish is called a school of fish
the fish looses its body balance
The flaps on a fish are called fins, which help the fish to maintain balance, steer, and move through water. There are different types of fins on a fish, such as dorsal fins, pectoral fins, pelvic fins, anal fins, and caudal fins.
Just a fish.
Fish do not have stones inside their heads. Some fish have small structures called otoliths, also known as ear stones, located in their inner ears that help with balance and orientation in the water.
It is to balance the fish in the water.
A baby fish is called fry. A fish egg is called roe.
Newborn fish are called "fry".
It is swimming, just like other fish do, it just uses its tail and swimming bladder as a sort of counter-balance, which allows it to swim upright, rather than horizontal, like most fish species.