Betta fish facts 2021

betta fish facts

For a long time, the Siamese Fighting Fish was kept exclusively by hobbyists in Siam (now Thailand) for the sole purpose of fish fighting. Now, this tropical fish is popular all over the world – though not for fish fighting, but as an aquarium pet.

Betta fish History facts

Through the years of delicate cultivation, Betta Splendens have been bred into much more decorated versions of their original ancestors. While in the wild these fish are varying shades of brown with flecks of colors mixed in, they can now be bought from pet stores and breeders in a wide range of vibrant shades such as red, blue, black, orange, purple and yellow. Due to years of selective breeding, the fins of the Betta Splendens have become significantly larger and more elaborate, and tail varieties now include the Delta Tail, Crown Tail, Half Moon and Double Tail.

Male & Female betta fish

The male Betta fish have long, ornate fins, and are the more aggressive sex. Female fighter fish have shorter fins and are typically not as vibrant in color as the males. Fascinatingly, Bettas are air breathers; they have a special organ, the labyrinth, to transform water molecules into oxygen. For this reason, Bettas thrive in shallow pools in the wild, and shallow bowls in captivity, as they need to get to the surface often to breathe.


The natural habitat of Betta tropical fish is in the warm rice paddies of Southeast Asia. They like to swim and make their homes amongst leaves, branches of outgrowth and other plant matter. In their native environment, these predatory fish hunt for small creatures such as insect larvae, worms, and shrimp.

Keeping bettas

Even though the Betta Splendens you can find in pet stores today has been bred in captivity, their aquarium should mimic their natural environment. Therefore, they are best suited to tanks and bowls that are shallow and have slow water currents, with plenty of aquatic plants or moss that the fish can rest on. Bettas are known to be jumpers, so a decent amount of plant life (without totally covering the surface of the water, so they can breathe) can help to prevent them from jumping out of the tank.

betta fish temperature

Bettas thrive in warm temperatures, so the fish tank should be maintained between 72 – 86 F. They love soft, slightly acidic water – a PH of 6.5 is ideal. Betta can survive well in rainwater and other soft water. Small testing kits can be purchased to make sure water is optimum quality for Betta fish

What they like to eat

The Betta Splendens requires a high protein diet.  In captivity, they should be fed a nutritional mix of specially formulated pellets and live foods such as blackworms and brine shrimp. The Betta fish can also be fed a tiny amount of cooked pea once a week.  This will their digestion healthy. Bettas can grow to around 3 inches in length from tip of nose to base of the caudal fin and can live for up to three years if well cared for.

Are betta fish territorial

Being an aggressive fish, it is not advisable to keep Bettas with other aggressive and territorial fish.  This may lead to some injuries or even fatalities. They should most definitely not be kept with other fighting fish, male or female, as even in a large tank they may attack each other. it is also recommended that they are not to be kept with Gourami fish.  This is because these are a very close relation of the Betta Splendens and can be aggressive at times. As a rule of thumb, fighting fish should not be kept with any other fish that may be nippy or anything that may be big enough to eat them (and vice versa). However, Bettas can get along with many placid tropical fish species.

How betta fish breed

Betta tropical fish breed in a special and interesting way. Once he feels his environment is just right, the male will blow hundreds of tiny bubbles at the surface.  This creates a floating ‘bubble nest’. If a female were to come by, he would try to impress her by expanding and stretching his fin and intensifying his colors. If the female is attracted to him, and ready to breed, her colors will also intensify, and she will display dark vertical stripes on her body. This courtship can get difficult with much chasing and aggression that could lead to some minor injuries. If she is receptive to the male’s dance, she may allow him to wrap her in his fins.  He will then gently squeeze her eggs into his bubble nest, fertilizing them as he does so.

Do betta fish sleep

Betta fish, like all things, need to sleep and rest so yes betta fish do indeed sleep. Have you ever noticed your betta fish in a stationary position? This is highly likely to be your betta fish resting or sleeping. As they don't have eye lids they tend to usually find a darker place in the tank to rest.

They would normally go to the bottom of the tank or if you have ornaments then will try and find somewhere out of the way to rest.

When do bettas sleep is something you may wonder. Bettas, being active during daytime, tend to sleep during the evenings. Actually caching your fish sleeping is difficult for two reasons. Firstly, because they sleep mainly in the darker hours, you are probably sleeping too. Also, bettas are extremely light sleepers so any approach to your tank is likely to disturb them.

Can betta fish hear

I was asked this question can betta fish hear? Yes betta fish can detect noises around them even though you can't see what we would call ears they have them just below their skin. They are even able to detect different types of sounds. You want to avoid tapping the glass as they will hear/feel the vibrations that is something you should never do to get their attention.

Can betta fish hear your voice

Betta fish will hear your voice they won't understand what you are saying as such, they can start relating certain words with associations. So if before you feed them you say "food" then drop in some food then they will eventually associate that word to food. It might take some time for them to know when you say a word it means something, Betta fish are some of the smarter fish. This is not very different to training most pets really and can create a more personal relationship with your fish.  I would say it is worth the extra time and effort.

Can betta fish hear music

Betta fish can hear music and any noise or vibrations, so you would want to make sure your betta tank isn't to close to anything like a TV or stereo as this can distress them.  Particularly if it's too loud and too close to your tank. Just like us we wouldn't want loud music played at us all day without being able to get away from it when we wanted.


Keeping Betta tropical fish is easy and rewarding if you have the passion, determination, and enthusiasm. With the right environment and care, betta fish will not only survive but will thrive.  This will provide great joy to their keepers.

1 thought on “Betta Fish Facts”

  1. halfmoon plakat

    Betta fish can live for around four years there are some simple steps
    which you can follow in how to take care of betta fish which means that your fish will continue to be happy and
    healthy sufficient reason for you for a long period.

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