Can Hamsters Eat Fish? (Salmon, Sardines, Tuna & More)

Last updated on October 8th, 2023 at 12:46 pm

We all love to eat fish, it is delicious and hardly anyone can resist it.

Fish has been eaten for a long time all over the world, but do our hamsters can eat fish?

Hamsters can eat fish, but in moderation, to reap the benefits without harming their health. Hamsters can eat a variety of fish such as salmon and mackerel and many others, only to always be cooked and never raw fish.

Fish is good for hamsters because it contains animal proteins, antioxidants, omega-3 fatty acids, iodine, and other nutrients for hamsters.

In today’s article, we will find out how much fish hamsters can eat, all the benefits and risks, how to give them fish, and what types of fish are best for them.

What is a fish?

Fish is an aquatic animal that comes in different species, some are tastier some less so.

Most fish are produced in India, China, and other countries in the world.

The fish will certainly deceive our furry friends with their taste so that they can enjoy eating it.

Can hamsters eat fish?

Yes, hamsters can eat fish but in moderation to have the best health benefits.

Because fish are high in fat, the amount you give them plays a very important role.

Fish contains a lot of nutrients and proteins that are good for hamsters.

Animal proteins in fish are important for hamsters because they contain amino acids that your pet cannot find in plant foods.

To be able to eat fish safely, it must be unsalted, and cooked, which means it must not be raw, and the bones must be removed before giving it to hamsters.

Fish has a lot of calcium, so you have to be careful about the amount you give to the hamsters.

Do hamsters like fish?

Yes, hamsters love fish, its taste will win them over to eat this delicious food.

Most hamsters will want to eat fish, although there may be exceptions to some refusing to eat fish.

In any case, if the hamster does not want to eat fish, you should not be disappointed, there is a huge selection of other foods, especially vegetables and fruits that your pet will want to eat.

How to properly prepare fish for hamsters?

In order for hamsters to eat fish safely, you need to prepare them carefully, here are the most important measures to look out for:

  • cooked fish – fish should always be cooked or boiled, only then is it safe for them.
  • no spices – never season fish with salt, garlic, pepper, or any other spices, they are all harmful to hamsters.
  • remove the bones – because they are a danger to hamsters, they can be suffocated by them.
  • moderate doses – it is always important that hamsters do not have side effects, ie instead of benefits, hamsters have side effects.

How to give fish to hamsters?

Whenever we give hamsters new food, in this case, it is a fish, we must be careful how we offer it to them.

It is best for you personally as the owner to start giving the fish directly from your hands, and in very small quantities, to get used to the new taste.

Hamsters in this way will be more easily encouraged to eat fish because they are by nature very timid.

When you personally give them fish, be sure that you will strengthen the trust with your hamster because in the future it will be much easier for him to decide to try other novelties in the diet.

If the hamster wants to continue eating great fish is okay, and if he refuses then stop giving him fish.

For the first 24 hours after feeding the fish, be careful not to get any side effects such as allergies, diarrhea, or the like.

If all goes well, continue to increase the amount gradually, and if side effects occur, it is best to consult a veterinarian for further steps.

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How much fish can hamsters eat?

The amount of fish that hamsters can eat depends on their breed and size.

For example, Syrians can eat the most, and dwarfs and other smaller breeds can eat the least fish.

So let’s see which breed of hamsters can afford how many fish, to have the best benefits without harm to their health.

How much fish can Syrian hamsters eat?

Syrian hamsters are the largest and they can always eat the most fish or any other food intended for them.

The ideal amount of fish for Syrian hamsters is one tablespoon once a week.

Although it may seem small for its size, it is still enough for the best health benefits without having harmful consequences.

How much fish can Robo hamsters eat?

Robo hamsters are smaller than Syrian hamsters, but they are larger than dwarf hamsters.

For robo, it is enough to eat one teaspoon, but only once in two weeks, nothing more or less than this amount.

Robo hamsters will enjoy eating fish and will reap the benefits for their body in the best possible way.can hamsters eat fish

How much fish can dwarf hamsters eat?

Dwarf hamsters can eat a teaspoon of fish once a month.

Together with other smaller breeds such as Campbells and Chinese hamsters, they can not process larger quantities of fish.

Their digestive system can afford so much, and that’s perfectly fine for this breed, there is no need to give them more fish, as otherwise, they may just have digestive problems.

Can baby hamsters eat fish?

No, baby hamsters can not eat fish for the first few weeks of their lives.

They should consume only milk, water, and food specifically designed for their age.

Only after a few weeks can they slowly start consuming novelties in their diet, including fish but in very small quantities.

In any case, before you start giving them fish and other foods, you should consult/ a veterinarian to see how far the young hamster is developing, and whether he is ready for new nutritional challenges.

What are the benefits of fish for hamsters?

By eating fish, hamsters can utilize nutrients and improve their health, here are some of them:

  • Omega 3 acids – are found in fish and help keep your pets healthy. Also, these omega acids prevent autoimmune disease in hamsters.
  • Vitamin D – is a very useful vitamin that helps hamsters have healthy and strong bones, to have proper growth and development which is of great importance to them. Vitamin D also prevents rickets-painful bone problems with their skeletal.
  • Iodine – is extremely important for hamsters because it can help reduce the chances of developing more cancers. Iodine is also great for creating more thyroid hormones and better body reactions in hamsters.
  • Proteins – help to properly build the muscles of hamsters, where they will have the strength and more energy to play and run, and of course to run away if in danger.
  • Antioxidants – help hamsters to be calmer and with less stress, which means longer life for your pet.

What are the side effects of fish for hamsters?

Any food, including fish, in moderation, is good for hamster health, but overeating can lead to side effects.

So let’s see what those risks are for your furry pet:

  • Acidity – more precisely omega 3 acids are good, but if they are consumed in excess, they can cause problems for the digestive system of hamsters.
  • Suffocation – occurs mostly because of the bones in the fish, so you need to be very careful about the amount you give to your pets.
  • Weight gain – occurs because high amounts of fat can lead to fattening hamsters with larger amounts of fish.
  • Satiety – when hamsters eat a lot of fish they will not want to eat other foods, they will be full, so they will not be able to get nutrients from other types of food, which they certainly need.
  • Sodium – some fish like tuna have a very high amount of sodium which is unhealthy for hamsters.
  • Mercury – is dangerous for hamsters because it is heavy metal, and can be toxic for hamsters. Tuna and shellfish can retain these toxins, on the other side salmon, sardines and cod contain the least mercury and they are much safer for your pet.

Can hamsters eat canned fish?

No, hamsters should not eat canned fish, it is harmful to their health.

Because it contains various additives, salt and vegetable oil, and ingredients that can only harm your pet.

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Can hamsters eat raw fish?

No, hamsters can not eat raw fish under any circumstances.

Raw fish can have bacteria and parasites that can harm your furry pet.

Raw fish is much harder to digest in their stomach, and there is a risk of other problems and diseases if they eat raw fish, so it should always be digested first.

What types of fish can hamsters eat?

There are thousands of different types of fish in the world that can be consumed. But what about hamsters, which fish are best for them?

Here is our selection of fish that you should give them, and which you should avoid for hamsters, which are tasty and good for their health and which are harmful.

Can hamsters eat mackerel?

Yes, hamsters can eat mackerel, with the exception of royal mackerel, which they should avoid.

Royal mackerel contains a lot of mercury in its composition, which can cause problems for your furry pet.

Can hamsters eat cod?

Yes, hamsters can eat cod because it contains excellent nutrients for them.

Cod contains omega 3 fatty acids, vitamin D, and other ingredients important for hamsters, but should be eaten only in moderation, as there is little mercury.

Can hamsters eat sardines?

Yes, hamsters can eat sardines.

By consuming sardines your pets will get a lot of nutrients, just be careful not to give them canned sardines.

Canned sardines have additives such as vegetable oil that are harmful to them, while fresh sardines when cooked are a good choice for hamsters.can hamsters eat fish

Can hamsters eat salmon?

Yes, hamsters can eat salmon, of course, we mean cooked salmon, it is great for their health if eaten in moderation.

If hamsters eat raw salmon, it is dangerous for them because of the danger of the salmonella bacteria. In fact, salmon is one of the healthiest fish in the world, rich in mega-3 fatty acids and other healthy fats.

Salmon with its ingredients helps the heart of hamsters work better and prevents inflammation. Salmon also contains vitamin B12 and selenium which helps to improve the mood of hamsters.

It should be noted that salmon contains a small amount of mercury, which is another advantage given to hamsters.

In addition to cooked salmon, hamsters can safely eat baked and smoked salmon.

Of course, you should pay attention to the amount, because too much salmon will cause diarrhea in hamsters.

Can Hamsters Eat Tuna?

No, hamsters cannot eat tuna, because it contains too much mercury in its composition and can harm their health.

Excessive mercury intake can be very toxic and therefore you should not give this fish to your pets. The only type of tuna that has less mercury than all others is skipjack, but we still recommend that you avoid tuna.

In addition to mercury, tuna also contains a lot of sodium and fat, as well as small bones that can be a problem for hamsters.

Fat can cause obesity in hamsters, and a large amount of sodium can lead to dehydration, which is dangerous for our furry friends.

Small bones in tuna can cause choking in hamsters, the only solution to not having bones is canned tuna, but sodium and fat will again be a problem.

The only type of tuna that has less mercury than all others is skipjack, but we still recommend that you avoid tuna.

read more: Can Hamsters Eat Hazelnuts? Benefits and Risks

Can hamsters eat fish fingers?

No, hamsters should not eat fish fingers, because they are processed food, and our pets should not consume processed food.

Fish fingers are fried with oil which is harmful to our pets. Because fish fingers also contain dough in their composition, which increases the number of calories.

Such food will only contribute to the hamster’s fattening and instability in movements and coordination, which is their weak point anyway.

Can hamsters eat fish sticks?

No, hamsters should not eat fish sticks, they can be harmful to their health.

Fish sticks contain various additives, including chemicals that can cause problems for your pet, so we recommend that you avoid them.

Can hamsters have dried fish?

Hamsters can also eat dried fish, but in moderate quantities, to get the best benefits from its ingredients.

In fact, dried fish offers excellent amounts of protein and minerals that are needed for the development of hamsters.

Dried fish is an excellent food for small animals such as our small hamsters.

Can hamsters eat fish bones?

Hamsters should not eat fish bones as they can choke on them.

Even if the bones pass through the throat of the hamsters, in the further processing they may cause injury in their digestive system.

If your hamster does swallow a piece of fish bone, you will need to monitor your pet to see if he is okay.

If you notice that he starts to have diarrhea, lethargy or vomiting, you should immediately take him to the veterinarian.


Hamsters can eat fish, it is safe for them as long as it is properly cooked, ie it should never be raw.

Cooked fish will provide them with omega-3 acids, lean protein, vitamin D, and other nutrients that are good for their health.

Moderation is crucial for the health of hamsters because if they eat too much fish can lead to obesity, the danger of suffocation, and other harmful consequences.

Hamsters can eat salmon, sardines, and mackerel, but tuna should be avoided as it contains the most mercury and is very harmful to your pets.

Finally, cook the fish properly and allow the hamsters to enjoy the taste and the health benefits they will receive.