Just like in your fish tank you have to clean it out so when you do you either do that often so you can get air in the water or you haves bubbler so in the ocean it has rivers making bubbles constantly or even the rain will do it
Fish require oxygen to survive, so they cannot live for an extended period of time in a non-oxygen aquarium. Without oxygen, fish will quickly become stressed, suffocate, and eventually die. It is essential to ensure proper oxygen levels in an aquarium to support the health and well-being of the fish.
Fish can absorb water by the gills
Fish breathe through their gills, which are specialized organs that extract oxygen from water. As fish swim, water passes over their gills, where oxygen is absorbed and carbon dioxide is released. This process allows fish to extract oxygen from water and use it for respiration.
A fish is a living animal that retains oxygen from water and is born with fins to swim with. There are many varieties of fish so this answer is only the most basic information of all fish. +++ They are also cold-blooded and reproduce by externally-fertilised eggs.
Fish breathe using their gills. Gills are respiratory organs that extract oxygen from the water and release carbon dioxide. Water passes through the fish's mouth and flows over the gills, allowing the fish to absorb oxygen from the water.
fish swim for oxygen.
Tadpoles get oxygen from water like fish do.
The fishes gills are like filters. when water goes in a fish's mouth, it goes through the gills, which filter out the oxygen.
A filter in a fish tank helps provide oxygen by circulating and aerating the water, allowing for oxygen to dissolve and be available for the fish to breathe.
Of course all fish need oxygen even puffer fish....
Floran fish need oxygen other wise it will death . so always need oxygen
Mammal take in oxygen in the air while fish take in oxygen in the water.
A fish AERATOR is a device used to add oxygen into a fish tank so that the fish do not suffocate as they consume the increasingly depleted oxygen supply
Sharks are a fish. Fish have gills that extract oxygen directly from the water in which they live.
All fish need oxygen....
no, Fish like all animals breathe in Oxygen and out Carbon Dioxide.
All fish, whether baby or older, need oxygen.