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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

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14y ago

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Why do fish-?

fish swim for oxygen.


Do puffer fish need oxygen?

Of course all fish need oxygen even puffer fish....


How do fish take in oxygen?

The fishes gills are like filters. when water goes in a fish's mouth, it goes through the gills, which filter out the oxygen.


How does a filter provide oxygen for a fish tank?

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.


Do tadpoles get oxygen from the air or from the water like fish?

Tadpoles get oxygen from water like fish do.


Floran fish need the oxygen?

Floran fish need oxygen other wise it will death . so always need oxygen


What is a fish areator?

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


How is the oxygen taken in by the lungs of mammals different from the oxygen taken in by the gills of a fish?

Mammal take in oxygen in the air while fish take in oxygen in the water.


If you fish in four ponds will more fish be caught in the two ponds with the lowest oxygen concentrations or the two ponds with highest oxygen concentrations?

Fish are generally more abundant in ponds with higher oxygen concentrations, as oxygen is essential for their survival and activity. Therefore, you are likely to catch more fish in the two ponds with the highest oxygen concentrations. While some fish can tolerate lower oxygen levels, the overall likelihood of catching fish is greater in the healthier, oxygen-rich environments.


Why do fish come to surface in an aquarium?

This is normal for a great many fish. In nature there is often food at the surface (bugs and such). It can also mean that there is not enough oxygen in the water. If the fish are starved for oxygen they will look elsewhere for oxygen. They will put their mouth at the surface and open and close it. It almost looks like they're trying to blow bubbles. If this is the case, get an air pump and aerator and put it in the water. The bubbles flowing through the water will add oxygen to the water.


How does a shark obtain oxygen?

Sharks are a fish. Fish have gills that extract oxygen directly from the water in which they live.


What type of fish doesnt need oxygen?

All fish need oxygen....