What do you feed a baby betta fish

Baby Betta Fish: Comprehensive Guide To Proper Care

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Adult Bettas are a colorful addition to any aquarium, and they’re reasonably easy to take care of, but what about baby Bettas?

Is it challenging?

Baby Bettas are pretty challenging to keep, and they require monitoring more than adults. But, if you’re willing to go through this challenge and raise baby Betta fish, we’ll help you!

[FREE DOWNLOAD]: How To Avoid The Top 5 Mistakes New Betta Owners Make

We’ll tell you all about their diet, breeding, ideal tank conditions, and more. So, without further ado, let’s jump in!

Page Contents

  • Ideal Tank Conditions
    • Water Quality
    • Temperature
    • Tank Size
    • Tank Substrate
    • Tank Mates
  • How to Feed Baby Betta Fish
  • Where to Get Baby Betta Fish
  • How to Breed Betta Fish
  • How to Make Baby Betta Fish Grow Faster
  • Common Aquatic Diseases
  • Watch This!
  • Frequently Asked Questions
    • Are baby Betta fish aggressive?
    • What are suitable baby Betta tank mates?
    • What is an ideal baby Betta fish body size?
  • Conclusion

Ideal Tank Conditions

The first thing you should know is the ideal tank conditions for baby Betta fish. These are essential for the happiness and well-being of your baby Bettas.

Water Quality

First of all, baby Bettas prefer living in high-quality water, which means it’ll be best if you install a sponge filter. We know there are many other filters you can install, but they might create water currents in the aquarium.

Accordingly, they might cause your young Bettas to get sucked up into the current and get badly injured.

If you choose not to install a filter, you’ll need to maintain regular water changes to clean the tank. Ideally, you should change about 25% of the tank water twice every week. You can also use airline tubing or an aquarium vacuum to remove dirty water from the bottom of the tank.


In general, Betta fish are tropical, which means they need high temperatures to thrive. Baby Betta fish even love higher temperatures than adults.

If you raising baby Bettas, you should maintain an aquarium temperature ranging from 76 to 82 degrees Fahrenheit using an aquarium heater.

You should avoid changing the baby Betta tank temperature constantly because this can cause your Bettas to stress, which may hinder their growth.

Tank Size

While adult Betta fish live in large tanks, baby fish get stressed when they have ample space to swim. These are optimal for growth and won’t cause your fish any stress.

Ideally, if you want your baby fish to be comfortable and grow well, you should look for 2.5-5 gallons tanks.

Tank Substrate

Baby Bettas are curious and love exploring around the tank, so adding substrate will benefit them. However, rocks and gems aren’t suitable because newly hatched Betta fish might injure themselves or get trapped under them.

Try settling for small gravel or sand as a baby Betta tank substrate, instead.

Tank Mates

Baby Bettas can live together in one tank until they begin to show colors. Once you notice this, you should separate your Bettas into different tanks. You can either put each one in a small tank or a cup.

[FREE DOWNLOAD]: How To Avoid The Top 5 Mistakes New Betta Owners Make

They often show color once they reach about nine weeks, which is a sign that they’ll start getting more aggressive.

This way, you’ll avoid fights and injuries in your aquarium. But beware that you’ll also need to put more effort into feeding and monitoring all of your fish.

It’s worth mentioning that male Bettas are more aggressive than their female counterparts, and they love fighting, like all Siamese fighting fish. As for female Betta fish, you can keep them together in a sorority tank without an issue.

When breeding, you can keep one male with several females. Accordingly, if one female doesn’t want to mate, the male will have a higher chance of finding one that has no issues. When males don’t find available females to mate with, they get more aggressive than usual.

Fun Fact: It’s not recommended to keep other types of fish with baby Bettas since this might harm and stress your young fish.

How to Feed Baby Betta Fish

In the wild, Betta fish are carnivorous, and they mainly feed on insects and insect larvae. However, in tanks, they feed on live and frozen foods.

Young Bettas can eat live food like Daphnia, tubifex worms, brine shrimp nauplii, white worms, mosquito larvae, and Grindal worms.

If live food isn’t readily available, you can feed your Betta fry (newly-hatched fish) frozen foods or crushed pellet foods. If you feed them pellets, you should monitor them to ensure they eat the food. Sometimes, baby Betta fish ignore pellets and don’t go near them, which means they might starve if you don’t notice.

Ideally, you should feed your Betta fry a minimum of two times per day, preferably even more. And you shouldn’t put too many pellets in the aquarium at once. Instead, you should put small amounts many times a day. This way, the water will stay clean, and your baby Betta fish will have a well-balanced diet that’ll help them grow.

Another meal you can provide for your Bettas is infusoria, which is a liquid fry food that you can add to the aquarium using an eyedropper. You can find it in many pet stores.

As baby Betta fish grow, they’ll be more ready to accept larger foods, so you should adjust their diet accordingly.

Where to Get Baby Betta Fish

Since young Betta fish are so fragile, they often don’t survive in fish stores for long. And although we don’t recommend buying them from such stores, sometimes it’s the only option. If it happens, you should check the conditions that the fish are living in and use your judgment to decide. But how can you do so?

Generally, most stores keep Betta fish in small cups, so you should look at them and make sure the water is clean and the fish is active. If you notice otherwise, look for another store.

Other than stores, you can purchase Betta fry from breeders, but it’ll take some online research to find a good one.

The option we recommend is that you breed your own Betta fish.

This way, you’ll know that they’re healthy and well-fed. And since breeding Betta fish might not be common knowledge, we’ll tell you everything you need to know about the process.

How to Breed Betta Fish

[FREE DOWNLOAD]: How To Avoid The Top 5 Mistakes New Betta Owners Make

The first step in breeding Bettas is to buy a breeding tank. Ideally, it should be a 10-gallon tank without any substrate. Then, you should get female and male Betta fish and ensure that your males are healthy and active with brightly colored bodies.

Next, add your females and wait about half an hour before adding the male Betta fish. The male will form a bubble nest at the water’s surface to attract the female, and then she’ll go over to him. After the mating rituals, the female will lay eggs, and the male will take them to care for them in the nest.

After this happens, you should take the female out of the tank and wait for the eggs to hatch. Once they do and the baby Betta fish start swimming, you can remove the male and raise the babies.

How to Make Baby Betta Fish Grow Faster

If you’re growing Betta fry for breeding purposes, you can fasten their growth through a few steps. First of all, Betta babies produce growth-inhibiting hormones (GIH) in the tank, which can slow down the fish’s growth rates. This way, you’ll keep the water clear of the hormones, and your Betta fish will grow faster.

You should change about 50% of the tank water every few days to fix this issue.

Secondly, feeding your Betta babies infusoria through an eyedropper for the first few days after hatching will give them all essential nutrients and help them grow.

After a few days of giving your Bettas infusoria, you can feed them newly hatched brine shrimp that you previously cultured at home or purchased. You can feed your Bettas shrimp multiple times in the same day or stick with two times a day but put larger amounts in the tank.

Bettas often start accepting brine shrimp nauplii at a young age, and it helps them grow quicker.

Thirdly, as your fish grow, it’s essential to upgrade their tank size. Small tanks cause fish stress, so they won’t be able to swim freely. Therefore, they’ll grow slower than average.

To avoid this, you should purchase at least a 10-gallon tank once your Bettas fully grow.

Finally, it’s better to separate Betta fish once they grow. This way, they won’t compete for food and will eat freely. More so, you’ll be able to monitor each one better to know which one is healthy and which isn’t.

Common Aquatic Diseases

Like all fish, baby Bettas are susceptible to getting many aquatic diseases. Most of the time, the diseases come from poor care for the fish.

For instance, if you forget to change the tank water and keep it clean, your fish will be more likely to get a bacterial infection. Likewise, if you feed your fish more or less than they should, they’ll have a higher risk of developing various diseases.

Bettas’ most common aquatic diseases are fin rot, Ich parasite infection, velvet infection, swim bladder disease, and dropsy.

Most of these can easily be treated by adding antibiotics or medicines to the water, but the success of the treatment depends on how early you discovered the disease. It’s easy to avoid these diseases if you maintain a clean aquarium and suitable water parameters for your fish.

Watch This!

Frequently Asked Questions

Are baby Betta fish aggressive?

No, baby Betta fish aren’t aggressive. They shouldn’t cause fights and clash with tank mates until they become adults. That’s why it’s safe to keep many baby Bettas in the same tank.

What are suitable baby Betta tank mates?

Baby Betta fish shouldn’t have any tank mates (except themselves). But once your Bettas fully grow, you can put some other fish in the aquarium like Cory catfish, Malaysian trumpet snails, Tetras, and Platies. Beware that if you put larger fish than Bettas in the tank, they might feed on them.

What is an ideal baby Betta fish body size?

The answer depends on how old your fish is. If your baby Betta fish is only a week old, it should be about 0.2 inches long. Once it reaches the one-month milestone, it should be 0.4. Finally, your Betta should be about two inches long after two months.


Keeping fish is an exciting hobby, but it takes effort and commitment, especially when raising baby fish. Raising baby Betta fish is much more challenging than keeping adults; they’re more fragile, require closer monitoring, and need more frequent tank water changes.

[FREE DOWNLOAD]: How To Avoid The Top 5 Mistakes New Betta Owners Make

Baby Bettas love feeding on live foods like brine shrimp and dried foods. More so, they require high temperatures, clean water, and small gravel in the tank.

Now that you know all about raising baby Bettas, you can maintain a healthy and colorful aquarium!

Last Updated: July 6, 2022

Baby Betta Care — LOVELYBETTAS







Though baby bettas are small, that's not a reason to permanently keep them in a tank smalller than one gallon. They need to grow, and tanks smaller than a gallon may stunt growth and put health in danger. Baby bettas should be kept alone in order to prevent stress and being picked on unless being kept peacefully with siblings. Even a snail could be harmful — the curious betta may be poking around near the snail, hoping to find food, when the snail snaps shut right on the poor baby. Please wait until the baby is full size until adding tank mates. 

feeding: WIDE variety of food

A baby betta's diet should be much more diverse than adult size bettas. In order to keep the baby growing and healthy, you'll need to feed it more than just pellets its whole life, especially while it is still growing. Live foods such as grindal worms, tubifex worms, white worms, blackworms, and mosquito larvae are exceptional for young bettas. However, if you cannot get your hands on them, nonliving foods can do well also. My favorite nonliving foods to feed baby bettas. along with crushed pellets, are freeze dried tubifex worms, frozen brine shrimp, and Repashy gel foods. Frozen bloodworms can also be fed but I have found that they make a mess since the babies chew up the insides and spit out the outer shell of the worms. Freeze dried tubifex worms seem to make the least mess, and are available at most fish stores. These can be fed as a treat as freeze dried foods do not hold much nutrients. Frozen brine shrimp is usually accessible at most pet stores, and the babies seem to grow well on them. As a breeder, I like feeding Repashy gel foods, specifically soilent green and meat pie, to all my tanks for the fry to graze on all day. However if you are just keeping one or two bettas as a pet, then the gel foods may not be as suitable for you unless you have many fish to feed and are willing to pay the price/extra effort. 

TEMPERATURE: 76-84F/24-29C

Like regular bettas, baby bettas need warm water. I try to keep the temperature at least at 80F/27C. Colder water will especially stress a younger betta, and makes them prone to disease. It also seems to slows down appetite. Information on heaters for bettas and basic betta care can be found here.


Since young bettas need to eat more frequently than adults, they'll need extra water changes. This is especially for if you are keeping siblings together as they seem to stunt each others growth. Add additional water changes to your schedule depending on the size of your tank. If you are going to be using a filter please USE A SPONGE FILTER! Other filters such as power filters may suck up your baby betta or the strong current may injure the betta. A filter is not necessary if you are going to be doing very very frequent water changes.

How to properly feed cockerels

Cockerels are the favorite fish of beginner aquarists. Undemanding, but at the same time colorful, with magnificent fins, the length of which exceeds the length of the body. Usually males are kept individually. They do not get along well with representatives of other species, and with each other. What, how and how much to feed these fish so that they are full and healthy?

To answer this question, let's look at the features of these wonderful fish: nine0003

Cockerels are predators, in nature they feed on small invertebrates. Like all carnivores, they need an increased amount of high-quality animal protein in their diet. This will ensure proper digestion, harmonious growth and development.

Cockerels have an upper mouth. This means that they feed mainly from the surface of the water and ignore food that has fallen to the bottom. Especially if the fish is not hungry. So choose sterns that float on the surface for a long time.

Cockerels are fish with a bright color. The natural color of the cockerel is inconspicuous, however, breeders have bred breeds of red, blue, turquoise, yellow, white, black colors and their combinations. The intensity of red-yellow shades depends on the content of special pigments, carotenoids, in the muscles and skin of the fish.

They are not synthesized in the body and are supplied with food . Natural sources of carotenoids are small crustaceans that feed on phytoplankton (krill, gamarrus), algae, yeast. Their high content in stern provides intense reds, yellows and oranges. In addition, carotenoids are a natural antioxidant and have an anti-inflammatory effect, due to which microtraumas heal faster. The skin acquires a healthy look and shine, so the fish of any color look spectacular.

Many betta breeds have long fins. The fins require extra attention. Improper feeding, lack of certain nutrients, vitamins and minerals leads to a deterioration in the condition of the fins, they are excised, become "torn". Fin injuries heal worse. nine0012 Foods rich in high-quality animal protein, vitamins, minerals and carotenoids provide active fin growth and rapid recovery after injury.

Cockerels have relatively small mouths. Compared to fish of similar size, the betta has a small mouth. An incorrectly selected size of food will lead to the fact that the fish will not be able to swallow it, the food will settle in the ground and in the filter sponge, spoil the water, while the pet will remain hungry. nine0003

From the foregoing, we can conclude that the betta needs floating food of small diameter with a high content of animal protein and carotenoids. Tetra Betta meets these requirements. This is a complete food in the form of flakes for bettas and other labyrinth fish with a high content of carotenoids to enhance the color. We recommend feeding the betta 1-2 times a day.

Make sure that the fish eats the offered feed in 2-3 minutes. If the food settles to the bottom, remove it with a siphon, and reduce the portion at the next feeding. A rounded but not bloated belly, activity, even fins, bright color and healthy luster are evidence that the fish is healthy and eating properly.

How to feed bottom fish

Catfish is an extensive order, which includes many families that differ greatly in the type of food. They are united by the fact that they all lead a bottom lifestyle. In addition, novice aquarists often mistakenly consider catfish and other demersal fish - loaches (bots, acanthophthalmus, gastromizons) and some cyprinids (gyrinocheilus, algae eaters). nine0003

To choose the right food , you need to understand what kind of bottom fish live in your aquarium and find out what their food preferences and habits are. And first of all, pay attention to the shape of the mouth.

The lower mouth is at the corridors, thoracatums, bots. These fish are actively digging in the ground, where they seek out food . For the most part, these are omnivorous inhabitants and in the diet they need both animal and vegetable products. nine0003

The sucker mouth is also a variant of the lower mouth, but in the process of evolution it has changed a lot and turned into a kind of sucker. We can see such a mouth in Ancistrus, Pterygoplichts, Plecostomuses, Gastromysons, and Gyrinocheilus. With the help of a suction cup, they are fixed on stones, snags, leaves and scrape algae from them. They are predominantly herbivorous fish. Their diet should be 70% plant based. In addition, for proper digestion, they need a high fiber content in the diet. nine0003

The remaining features will be common to all types of bottom fish.

Most catfish and loaches are shy nocturnal inhabitants. During the day they hide in shelters, and at night they go out in search of food . Therefore, they often skip general feeding. But even if they go out, the structure of the mouth does not allow them to eat at the same speed as the rest of the fish. Therefore, during general feeding, these fish may not eat up.

Bottom fish eat food slowly. This is especially true for "sucker catfish". In nature, they have adapted to constantly swarm in the ground, or clean off algae plaque, receiving food in small portions throughout the day. Accordingly, food for bottom fish should be stored in the water for a long time and at the same time not dust or spoil the water.

Ideal feed for bottom dwellers - these are tablets and plates. They are quite large and quickly fall to the bottom, so the inhabitants of the upper layers do not have time to eat them. Such feeds retain their shape for a long time, do not collect dust and do not spoil the water. In this case, you should choose different options for herbivorous and omnivorous catfish.

Tetra Wafer Mix is a complete food for omnivorous bottom fish (catfish and loaches). It is suitable for corridors, thoracatums and bots. nine0012 Food consists of two types of tablets: brown with shrimp as a source of animal protein and carotenoids, and green with spirulina as a vegetable component.

Foods of the Tetra Pleco line are suitable for sucker catfish (ancistrus, pterygoplichts, plecostomuses, loricaria, sturis, otocincluss) and other herbivorous bottom fish (algae eaters, gyrinocheilus).

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