What do fish eat? Of sea, of rivers and more

As you probably know, care in what do fish eat It is not the same in nature as when they live in an aquarium. In their usual living space, fish frequently feed on other smaller amphibian creatures, for example hatchlings or spineless creatures.

what do fish eat

How to know what fish eat?

It can be understood that the life of fish adjusts to the life of amphibians, so their food is submerged. From mountain lakes to the deep sea, fish have colonized the waters due to their different strategies for sustaining themselves.

There are species that feed on the remaining parts of deteriorated creatures on the ocean floor, some are dynamic crawlers and others feed on plant matter, as important as the names for fish and find out who it is.

Most are carnivores, despite the fact that there are some categories of animals that feed on plants and green growth. It is interesting to know what do sea fish eat, those who live in an aquarium, among others.

In case you need to know what kinds of food fish eat, keep reading this article, it will clarify for you. how fish feed, as well as the most unmistakable distinctions and attributes of the foods of this group of creatures that make life in the waters.

Types of food fish eat

It is essential to know the routine of fish feeding and of each species to offer them a satisfying food that provides them with all the supplements and nutrients that allow them to live strong for longer. And thereby avoid falling into endangered fish.

Depending on where the food originates, fish are characterized in several classifications, although it must be taken into account that many species manage to have more than one method to sustain themselves and consolidate some strategies to obtain all the essential supplements.

what do fish eat

On the other hand, there are species that can live in the mouths of waterways, where the waters are salty and which would imply, that can live both in currents and in the ocean, for example, the bull shark /Carcharhinus leucas/ or salmon /Salmo salar/, so its feeding routine will be integral between the foods accessible in the two types of environmental conditions.

This happens due to homeostasis, which is the ability of living creatures to maintain a stable balance of internal proportion. Next, mention will be made of the classifications of fish according to their type of diet:

herbivorous fish

They get their food from springs that originate from plants, either higher plants or aquatic algae, depending on how deep they live and their lifestyle.

Some groups of animals have morphological adjustments in their bodies, for example, the parrotfish /Scarus coelestinus/, with its specific dentition, which groups its teeth in a structure like the beak of parrots, which it uses to nibble at corals and stones . In this way, they have the option of expelling the aquatic algae from these strips.

what do fish eat

carnivorous fish

They feed on other fish and amphibian creatures, including zooplankton, molluscs, crustaceans, and worms. They can be dynamic sniffers or catch their prey by following the trail. Likewise, they have tight teeth to tear the skin of their prey, they are careful, as well as the wood eating insects.

The cases of fish that eat meat are the white shark /Carcharodon carcharias/ or the Goliath barracuda /Sphyraena barracuda/, both with sharp teeth that function as very obvious saws.

what do fish eat

omnivorous fish

They are those that present a very timely diet, include a diet, that adjust to the accessibility of the pantries, so that their sustenance routine can be of both animal and vegetable origin.

what do fish eat

detritivorous fish

It can be understood that they use the materials that remain from certain fish and that in turn travel to great depths of aquifer spaces. This is completed as the reuse of natural material from aquatic demarcations, since, despite taking care of it, numerous varieties are cleaning the water, thus offering significant support to these biological systems.

It is also noted that the usual catfish belonging to the Siluriformes order are fish that adapt very easily to this type of food care, for example, the catfish /Panaque nigrolineatus/. Similarly, fish called pool cleaners, for example Corydoras aeneus, are responsible for sifting the base of the waterways where they live.

fish food 

Next, we are going to develop the feeding of the fish according to their habitat and specific characteristics:

River fish

The fish of the stream have adjustments of their bodies that allow them to live in minimal saliferous waters and their internal state contains the salts, since these do not have great amounts of their external condition.

As has been mentioned, there are several methods to take care of fish, those that live in waterways, where the waters have more of the rich mineral of magnesium, the complement of phosphorus and the richness of potassium, you can also discover incredible fluctuations in your eating routine.

The species responsible for separating the water, feed on flotsam and jets of debris from streams or tidal pools, live and feed at the base, have a mechanical set of mouth adjusted for it.

Different species, those of the herbivorous class, feed on growths of green algae and vegetables, and sometimes on fruit products that end up falling into the water. However, wild fish in this type of environment feed on baby critters or shrimp. They can also eat other smaller fish and other earthly creatures that accidentally fall into the water.

Fish in the sea

Have you ever thought aboutwhat do fish eat?, good question, if you can visualize it, it should be noted that it is a variety that has become accustomed to living in salt water and, therefore, they show a very different diet from that of fish from other environments, they consume foods that the same space provides them and this will go according to the variety.

It is quite common for them to consume provisions created in the same aquifer space, considering that each gender adds by itself a huge variety of foods that it will use for its sustenance.

This will depend on your method of food care, which will be the most appropriate for those who eat organic components, those who are supported by plants, those who adapt to any diet and those who eat meat considering where they come from in the oceans.

To such an extent, that those who occupy the depths of the ocean, deep fish and different creatures of the deep ocean, adjusted to live in areas of the ocean where life is scarce, manage to benefit from zooplankton and smaller fish.

On the other hand, the species of various sharks, the striking swordfish that are nautical, that is, they are located closer to the strip. They are incredible crawlers and ravagers, they are excellent at capturing prey effectively.

Different species, the charming clownfish, which look like a very quick animal, feed on the growth of green algae and creatures to a similar degree.

There are marine species with increasingly inquisitive dietary patterns, the pilot fish /Naucrates ductor, which benefits from food scraps and parasites from sharks, with whom they structure a harmonious relationship for all intents and purposes, so it is difficult to see them apart.

Since you understand what saltwater fish eat, you may also be interested in discovering probably the most delicious saltwater fish in existence.

Freshwater fish

Freshwater fish are those that occupy very specific places to live such as beautiful streams, incredible marshes, the most beautiful current pools and wetlands, whose salt content is less than 1,05% and is conclusive for their resistance in as for living.

The fish that possess these waters are sustained by green aquatic plants and tiny genera that make up the world of fish, although they can also consume other fish and the remaining parts of different creatures. In addition, there are varieties that can move to the surface and feed on bugs and hatchlings discovered there.

Small fish

Most small fish feed on hatchlings, spineless animals, and small amphibian creatures. On the other hand, small fish need more food than huge fish relative to their size, as their vitality needs are more noticeable, due to their high capacity to burn calories and move.

Because of the hatchlings, that is, new and juvenile fish, they eat some plants and tiny fish, since the size of their mouth does not allow them to eat larger foods.

As they develop, their feeding patterns change until they reach the feeding regimen of adult fish. In the event that you need to bring home the minnows, it is good to educate yourself on new and recent information.

fish tank

Whenever you choose to keep fish as pets, you should know that they need extraordinary consideration and that you should have licensed varieties, as knowing their native starting environment and what they eat in the environment is essential. Depending on the variety, they can eat normal and live foods that are found in the fish tank or the lake, for example:

  • Bichos
  • The most flamboyant Detritus.
  • Beautiful Plankton.
  • Terrible Worms.
  • Beautiful snails.
  • Other fish.

The fullness of these nutrients will depend on the quality of the supplies, the proximity of marine plants, and the inclusion of the base, eg, rocks and seagrasses. However, the corresponding supplies must be provided at all times and, depending on the variety, so will the hours each day that they must be provided.

These are made up of fixing mixtures carefully chosen to provide all the essential nutritional components for the well-being of the fish. They must be made in a way that is anything but difficult to ingest and process.

These whole grain supplies come in chunks, chips, or pellets, and your fixings will change depending on the types of fish you're planning for. For example, they can be made from algae or crustaceans for carnivorous kingdoms.

Incredible consideration and restraint should be taken when choosing the correct nutrition for our fish in the tank, taking into account their regular qualities and whether they are new and merit freshwater or simply saltwater.

Tropical fish

Tropical fish can benefit from live supplies as well as dry ones: the former could be mosquito hatchlings, shrimp, and tiny earthworms; the second can be in tablets, pieces or granules. With them, it offers a good amount of supplements, filaments and protein material for ideal progress.

Cold water fish

Coldwater fish are anything but difficult to keep and care for. There are numerous nutrients for each variety adjusted to their healthy needs and their good digestibility. The best known are sticks, granules and sparks.

Complete mixes so that you don't have to worry about anything and you don't have to improve your fish. Chips and flakes are the most recognized coldwater fish food: they slip in the water longer and are easy for the creature to reach.

However, the granulation that the fish eat has a greater weight and falls faster to the bottom of the tank, so some less talented fish will not exploit it. While flotsam can contaminate the water and must be scrubbed most of the time to avoid this, the pellets leave little buildup and keep the aquarium parity.

bottom fish

The base fish food is not similar to the base fish. Dropping food is not appropriate for this surface as you will need it to recharge so it goes to the bottom tier of the tank slightly and is not eaten by others during the dive.

We would be talking about fish, for example, catfish, cobitids and barbels. Round tablets and plates are the most commonly used food for these species as they are heavy and can be kept in explicit areas of the tank. Have pills for fish-eating fish and others with spirulina algae for plant-eaters.


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