They filter air through their gills.
Gills
The Blob Fish is mostly jelly which helps it live under the water at so much presser
water.
there is many adaptation fish have to survive like they have gills to breath under water and a fin to swom better
Fish adapt to their environment by having a streamline body to cut through the water and they have gills to help them breathe under water. Some fish are even camouflage to disguise them underwater.
fish:fish lives in a water but frog cannot lives in water why because fish cannot live with water
a matamata has a huge mouth for sucking in fish and a tube nose for getting air above the surface, it has fleshy appendages that wave in the water like seaweed and they lure fish and the matamata sucks them up!
If you mean the blue tang. Then adaptations of that would be the sharp spines on his sides for defense. Gills of course so he can breath under water.
they swim and live under the water they use their gills to breath in and fins to swim and skills use to defense themselves from dangers in sharks etc...
It has a large beak to catch bigger fish. and it holds water.
Whales and Dolphins are born under water and aren't fish.
The most important physical adaptation of the flying fish is its large pectoral fins. It can swim really fast and then jump out of the water. The flying fish extends its largefins and they act like wings to escape from predators. The flying fish has more adaptations that help it fly.