When it comes to the diet of a fish, they can eat various different foods, depending on the species that you are dealing with.

Not all fish are the same, and they will all eat different things, which is why it is important to research the fish in question to find out what you need to feed them.

You will need to find out what a specific fish eats before you go ahead and get a new pet fish, as you don’t want to feed it the wrong thing.

To make sure that your fish is getting the best out of its diet, you will need to make sure that it is getting what it needs in terms of food.

Not only is the type of food important, but the feeding tendencies of the fish is also something to look at. You will need to find out how often it needs to be fed, and make sure not to overfeed them.

In this article, we are going to look at omnivore fish and more, so you can find out everything that you need to know.

Are Fish Omnivores?

Some fish are omnivores, but there are others that are not omnivores. You can also get herbivores and carnivores, so it depends on the type of fish.


A fish that is an omnivore will eat a variety of both meat and vegetable matter, but even though omnivores can eat vegetable matter, there are some types of grains and plants that they will be unable to digest. Their teeth and digestive tract possess some traits that both the carnivore and the herbivore have.

Omnivores are some of the easiest fish to feed as they will eat flake foods and live foods, and everything else in between. This is why omnivores are the perfect choice for a community tank.

It is really important to ensure that you are feeding your fish the correct diet as their bodies are designed for certain types of foods. If you are not sure what you should be feeding your fish, then you should seek advice. 

Fish Diets

Not all fish will have the same diet, and a fish has a mouth, teeth, and digestive tract that is specifically designed for certain types of food.

It is important to remember that any living creature will likely eat whatever you put in front of them if they are hungry enough, but this might cause issues for some fish. You should only feed them the things that they are designed to eat.

So, before you get a pet fish, you should do some research to find out what type of diet they need in order to stay healthy.

There are typically three basic categories that fish can be classified in, and these are omnivores (as mentioned above), herbivores, and carnivores. These categories will define the diet that your fish needs in order to survive.


Carnivores are fish that are meat-eaters, and they typically require live foods.

These fish will have a larger mouth with sharp and pointed teeth that allow them to hold onto their prey and tear off large chunks of flesh.

This flesh will then be swallowed whole, instead of being chewed up first.

A carnivore will have a short intestinal tract and a relatively large stomach that is designed to hold an entire fish.

The digestive system does not have the ability to digest vegetable matter, so they will not be able to get any nutrients from this type of food.

It is also worth noting that carnivore fish are not suitable for community tanks as they will chase and eat the other fish that are in the tank.


A herbivore is completely different from a carnivorous fish, and they are on opposite ends of the food chain.

They can sometimes be found eating live food, but the proper diet for a herbivore fish will consist of plants, algae and fruits. They will primarily consume these foods along with vegetable matter that they might find in the water.

These types of fish can typically be found in both freshwater and saltwater, and they have plenty of food sources to choose from.

They don’t have a true stomach, as they possess a specialized intestine that is able to break down plant matter.

They have flat teeth that allow them to grind food before they swallow it. Due to the fact that they do not have a stomach for holding food, the herbivore must be fed frequently, at several times a day. 

What Do Wild Fish Eat?

Fish need to consume a good combination of fats, proteins, vitamins, and minerals in their diets, just like us humans. In the wild, fish need to work for their food, and they catch their own meal.

It is really important that fish eat the right type of food for their species and size, and this could range from anything from live prey to vegetation.

Their diets can often become impacted by their surrounding ecosystem, depending on what resources they have available to them. 

Another thing that fish have in common with people is that they can be picky eaters, and there are some fish that will stick to a strict plant-based diet, and others that will prefer to eat other types of fish. 

Food for Pet Fish

There are lots of different types of fish that would make a good pet, but the species of fish that you get will tell you a lot about what you need to feed them.

You will need to research the fish’s diet to find out more about the things that they can eat, and this is really important. In order to satisfy your fish’s dietary needs, you will need to feed them according to their diet.

You will need to find out if they are herbivorous, carnivorous, or omnivorous to determine the sorts of things that you can feed them. You should also never put carnivores in a community tank, as they will eat your other fish.