How often should you feed betta fish bloodworms?

In this blog we will discuss how often you feed bloodworms to your betta fish.This blog will help betta keepers to feed bloodworms to your bettas in moderate amounts.


In this blog

  • How often should you feed betta fish bloodworms?
  • How to feed bloodworms to betta fish?
  • How many bloodworms does a betta fish feed per day?
  • What are the advantages and disadvantages of feeding live bloodworms to bettas?
  • What are the advantages and disadvantages of feeding frozen bloodworms to bettas?
  • What are the advantages/disadvantages of feeding freeze-dried bloodworms to bettas?
  • What are the downsides of overfeeding bloodworms to bettas?
  • Why do bettas reject bloodworms?
  • Do sources matter for buying bloodworms for betta fish?
  • Is it possible to breed your own bloodworms at home?
  • Summary 
  • Frequently asked questions
  • Reference

How often should you feed betta fish bloodworms?

Betta fish make a beautiful addition to any freshwater aquarium. If you are keeping these vibrant  fish, you need to know the foods they prefer the most.

Bettas are carnivorous and prefer lots of proteins in their diets. Bloodworm is a great treat, but there is too much of it to be a staple food for bettas. They just have too much fat and protein.

Betta keepers should feed their betta fish bloodworms only once or twice a week. If you do this, you will give them some changes in their diet, but also make sure they do not become constipated.

Before you include bloodworms in your betta’s diet, you need to know that bloodworms are not actually worms.These organisms are larvae and can be sold frozen, freeze-dried or live.

If you are introducing bloodworms to your betta fish tank, do small portions and watch them react.

You can start with one or two bloodworms at a time. The stomach of the betta fish is also very small.Therefore, avoid dropping a whole blood worm or a frozen cube.

While they all have their advantages and disadvantages, you need to choose the best one based on how easy they are to store and how nutritious they are.

How to feed bloodworms to betta fish?

  • If you buy raw bloodworms, you need to keep them in the refrigerator.
  • Add sufficient conditioned water to cover the bottom of the container. When you’re done, rinse them out and add them to your tank.
  • It’s best to take some aquarium water and let the freeze-dried bloodworms soak for a few minutes before giving it to your betta.
  • Be careful not to let water enter the tank from the bloodworm container.
  • In order to get the best protein possible, you should always try to buy the best brand of freeze dried bloodworms for betta fish.
  • When purchasing packaged bloodworms, it is recommended to read the instructions on the packaging.
  • The amount of bloodworms your betta fish feeds depends on other factors, so it’s still a good idea to check the guidelines.

How many bloodworms does a betta fish feed per day?

  • The amount of bloodworms to feed a fighting fish depends on the size of your aquarium and the number of fish. 
  • When feeding bloodworms to betta fish,three bloodworms for each bettas is sufficient.
  • Betta fish should be fed twice daily, in an amount equivalent to about 5-6 bloodworms per day.
  • Too much food can cause pollution problems that can harm the fish.

What are the advantages and disadvantages of feeding live bloodworms to bettas?

A living bloodworm is clearly the most natural form of bloodworm. They are a bit pricey, but they have some big advantages.

One of the benefits of feeding live bloodworms to betta fish is turning on their natural instincts of hunting. This hunting mode is great because it stimulates their brains and helps prevent boredom.

In contrast to frozen and freeze-dried bloodworms,live forms contain more nutrients because they are still in their purest form.

If you are planning to breed your betta fish then live bloodworms are an ideal food, because they mimic the abundant food that occurs during the breeding season of bettas in natural conditions.

If you don’t have a large aquarium, then buying too many bloodworms for your betta would not be a great idea. 

While you can store them in the refrigerator for 2-3 days, you may need to throw them away afterward before they grow into flies.

Live bloodworms have a very short lifespan and are also more at risk of contamination.They also carry bacteria and parasites that can infect betta tanks.

So never directly introduce them to bettas tanks.Keep them in separate containers & follow the above mentioned procedure to feed live bloodworms to betta fish.

What are the advantages and disadvantages of feeding frozen bloodworms to bettas?

Frozen bloodworms have a long shelf life, but they also contain a relatively large amount of nutrients in them too.If you plan on storing frozen bloodworms, you can store them for up to 6 months. And given the amount, it’s enough to feed them to your betta.

Frozen bloodworms also carry far fewer bacteria, infections,and parasites.This is because they are often killed during the freezing process.

When feeding frozen bloodworms, be sure not to feed them an entire cube at once. Instead, you need to break the cubes up into smaller pieces and make sure they are defrosted.

When buying frozen bloodworms, it is better to choose higher quality brands. A good brand has more worms than water.

What are the advantages and disadvantages of feeding freeze-dried bloodworms to bettas?

Freeze-dried bloodworms can be part of a complete meal for carnivorous fish such as betta fish. Freeze-dried bloodworms are excellent because they are easy to store and use. Once you get them, they will last a long time.

It has little nutritional value compared to live food and frozen foods. When they are freeze-dried, most of the nutrients in them are lost.

When feeding freeze-dried bloodworms to bettas, you need to be aware of its additional benefits, i.e it floats on top of the tank for extended periods of time. So you don’t have to worry about them sinking when the bettas can’t see them.

If these worms are not treated and soaked before being added to the aquarium, they can cause constipation in betta fish.These freeze-dried foods swell in the gut, causing obstruction and constipation.

What are the downsides of overfeeding bloodworms to bettas?

Ammonia pollution in bettas tank

If you are overfeeding bloodworms to bettas, there are likely to be ammonia spikes in your aquarium.

Ammonia spikes occur when ammonia cannot be consumed faster than beneficial bacteria are produced. And rotten food makes spikes of ammonia.

Dropping more worms than a betta can eat will cause excess food to begin to spoil, leading to spikes in ammonia.

Elevated levels of this ammonia increase the risk of ammonia poisoning and can lead to the death of bettas.

Digestive issues like constipation, bloating & swim bladder disease in bettas

If you feed your betta fish excessive amounts of bloodworms, they may experience digestion problems like constipation and swim bladder disease.

It totally depends on the situation,if swim bladder disease is caused due to overfeeding or constipation then definitely it’s curable and the condition can be reversed to normal.

Infections due to betta tank contamination

The more bloodworms you add to a betta aquarium, the more likely it is that the infection will be transmitted. 

Betta is not very likely to get infected with bloodworms, but it does not make any sense to increase the risk.

It is important to provide bettas with a safe worm as it increases the health risks associated with bloodworms.Safety measures ensure that bettas are eating healthy foods and that there is no risk of health problems.

Why do bettas reject bloodworms?

Betta fish can sometimes be fussy eaters. If you find that your fish aren’t indulging in this treat, they may just not like bloodworms. In this case, you need to try another treat for them.

If the betta does not also eat other worms, this may indicate an infection or the presence of parasites. To confirm, you must test the water using a water testing kit for any contaminants.

Do sources matter for buying bloodworms for betta fish?

Whether you buy raw bloodworm, frozen bloodworm, or freeze-dried  bloodworm,the source is very important. Before you buy a worm, carefully research the companies and products you find on the market to get a worm that will help betta.

Is it possible to breed your own bloodworms at home?

Some enthusiasts choose to breed their own bloodworms. Breeding is a good option as it allows the fish to be fed a clean and healthy diet.

Participating in the entire process can save you money and time in finding live bloodworms.


  • Betta fish are naturally carnivorous and omnivorous in aquarium settings.They require both meat and plant ingredients in their diet, so they feed on diets that contain animal-derived proteins such as bloodworms.
  • Freeze-dried bloodworms can provide bettas with additional dietary variability, because they are a very nutritious protein source, and can be given as a snack or as part of a daily diet.
  • Too many bloodworms can lead to illness. For example, freeze-dried bloodworms tend to expand when submerged in an aquarium, making constipation more likely. It affects digestion and eating habits.
  • To minimize the possibility of contamination after thawing the bloodworm, do not add water containing the bloodworm back to the aquarium.
  • If you add large pieces or bloodworms in excess, the bettas will not complete them & you will be forced to remove and discard the excess.Make sure to feed them wisely.
  • Always purchase bloodworms from a reputable seller or pet store.If a pet shop’s reviews are known to be bad or have a lot of negative feedback, the food may not be of high quality either.

Frequently asked questions

How many forms of bloodworms can you feed your betta fish?

Bettas can be fed live, freeze-dried and frozen bloodworms.

How many types of freeze-dried bloodworms are available in pet stores?

There are usually two different types of freeze-dried bloodworms available for purchase.Grade A and Grade B. Grade A is much better for betta fish.

Are bloodworms expensive?

Betta fish have a small stomach, only the size of a pea. So feeding them more bloodworms than they eat is a waste of money, as it is costly.