Halfmoon Betta Fish

halfmoon betta fish

Last updated on August 6th, 2022 at 01:37 am

Halfmoon Betta Fish is a popular variety of Siamese fighting fish. They are one of the more expensive varieties, but they are also among the most beautiful and sought-after kinds in the United States. You may find some other types at your local pet stores like double-tail or veiltail betta fish, but you will not find the halfmoon betta fish in any other pet store.

This type of Betta is popular for a number of reasons, but the most important reason is that they are so beautiful and their coloration varies from deep purple to bright red (or sometimes green). Halfmoon Bettas have a white underbelly with vivid colors on the dorsal fin and the tail.

The dorsal fin is a wide, flowing structure that spans from just behind their head to the end of their body. The fins flare out for maximum surface area which in turn helps them swim faster without much effort on your part as an owner.

They also have stunning colors with some scales being red while others are purple. This is a stylistic choice and you may see some that have more pink, or others with an orange hue. It really depends on the particular fish, but it’s always amazing to find one in person just for these different combinations of color across their body.

What does Half Moon Betta Fish mean?

halfmoon betta fish

A halfmoon betta fish is a type of Betta that has one or two crescent-shaped fins on its tail. The coloration patterns are the same as other Bettas, and they have no major difference in care requirements from standard varieties of Betta. Halfmoon bettas were developed by selective breeding to be an attractive variation of the standard Betta.

The result is a betta fish with an attractive finned pattern that can be seen from above as well as below, and also makes for easier viewing of the tail when viewed head-on. This particular type of betta was first bred by John Raspass in the late 1970s.

Halfmoon betta fish is not a true species of Betta, but they’re often grouped with other Bettas when sold because their appearance is so similar to that of standard varieties. They have no major difference in care requirements from standard varieties of Betta.

Origin and description

The name “halfmoon” comes from the shape of its tail fin. It is also called a plakat betta fish, which means flat-tailed or shortened fins in the Thai language. This term was first coined by Jeff Young to describe his strains with these characteristics. Like other species of bettas, halfmoons come in many color varieties.

In the wild, halfmoon betta fish are found throughout Southeast Asia in countries such as Thailand and Indonesia. In captivity, they are popular among new hobbyists because of their ease to care for and stunning appearance. Halfmoons can be housed with other species that have similar water requirements or live alone without any problems.

A halfmoon betta fish is a type of betta with shortened fins, meaning it has an unusually wide tail fin and slimmer body. The name “halfmoon” comes from the shape of its tail fin which resembles a crescent moon when viewed head-on.

Species profile

halfmoon betta fish

The halfmoon betta fish is a hybrid of the Het Moors and Veiltail species. It was first developed in Japan, which has led to it also being called the Japanese Half Moon or Gin Rin (Silver Ring). This type of betta is quite rare due to its delicate nature; about one out of every thousand fish will be a halfmoon betta.

Amphiprion Percula Care (Orange Clownfish)

The first thing that you’ll notice about the halfmoon is it’s distinctive caudal (tail) fin, which should have an elongated shape with rounded edges and curves on both halves of the tailfin itself. This type of tail requires more care; they need to live in a tank without any other betta fish because they are very territorial. The halfmoon’s body should be rounded, and the single row of scales on its side should have a feminine curve at their tips.

Color and appearance

The Halfmoon Betta is a polymorphic fish, meaning that it has more than one color. The most common of these colors are red/orange and blue/green, but other rarer colors include yellow or white with black stripes.

Halfmoon betta fish have a rounded body shape and are usually orange or red-orange in color. They typically reach lengths of between two to three inches (50mm). The halfmoon has the ability to change its colors depending on who is looking at it, which can also depend on their moods as well. This beautiful creature will have a purple-blue color when they are feeling stressed or scared but will have an orange tone to them when they feel happy and relaxed.

The halfmoon betta fish can also change the appearance of their scales depending on which moods they are in and where they live. They typically usually do this by adding more red pigment into their scales, but they can also change to blue and green colors.

Range and habitat

The Halfmoon Betta originated from the Thailand region. The freshwater fish is found in mountain streams and tributaries of rivers, as well as stagnant water sources such as rice paddies or ponds with standing rainwater. In addition to its natural home range, this Betta can be found in aquariums all over the world.


Size is an important consideration for betta fish care. They are typically anywhere from a half-inch to two inches long but can grow up to four or five inches in captivity if they have plenty of room and live with other large species like guppies, swordtails, angelfish, tetras, or gourami that won’t bother them.

What size tank does a half moon betta fish need?

A Half Moon Betta fish needs a tank of at least five gallons. This is because these fish are more active than other betta species, so they need lots of room to swim around and explore. A bowl or jar will not suffice as an enclosure for this type of pet due to the size and activity level.

The proper environment will make your fish happy and healthy.

Life cycle

In the wild, betta lives in rice paddies and slow-moving streams. Males build bubble nests for females to lay eggs while they defend their territory from other males. Betta usually only survives a few months as an adult but can sometimes live up to two years old. In captivity, halfmoon bettas are much longer lived with a lifespan of two to three years.

Humans have been keeping halfmoon bettas as pets for over a century, and despite their differences in life cycle and behavior from other popular fish like goldfish or guppies, they are now one of the most popular types of aquarium fish because they’re so easy to care for. The only thing you need to do is change the water once a week and make sure they get fed.

Ctenopoma Nebulosum (Anabantidae)

Are Halfmoon Betta fish aggressive?

No, but they are known for being more territorial than other betta fish. Halfmoon Bettas usually don’t bite and prefer to use their fins or nip at the tank glass when feeling threatened, making them an excellent choice if you have children in your household. They also tend to be less aggressive with other halfmoon bettas than with other species.

Halfmoon betta care

halfmoon betta fish

In general, betta fish are fairly easy to care for. However, some things need to be taken into account when caring for them. The water needs to have a pH balance of around six and the temperature should stay between 76°F and 82°F (24-28°C). They require a heater that is sturdy enough not to be knocked over and a filter that is strong enough to keep the water clean.

Maintainance of their environment should include weekly partial water changes, monthly gravel scrubbing/replacement with a new substrate, regular tank cleaning with algae product or other methods, removal of uneaten food from inside the aquarium each day, etc. Whatever you do, make sure you take the time to do it.

What they eat

Most halfmoon betta fish feed on baby brine shrimp, bloodworms, and freeze-dried foods. They are often fed with a feeding stick so the food doesn’t fall into their tank.

Halfmoon betta fish can be given live prey such as small worms or flies but should not be fed more than once every few days

Can Half Moon Betta fish live together?

Halfmoon Betta fish can live together when they are the same size. It’s best to find a tankmate that is not much bigger than them.

The Half Moon Betta fish should be introduced during their feeding time because this will give them some time to get used to each other before they swim in the same tank.


Halfmoon betta fish can be housed in a small group of six or more. You should only keep them with other half-moons, but if you want to mix them up a bit and have an interesting tank without any aggression, then this is your chance! But the key rule for these guys when mixing species is that it’s best to house them in groups of two or more. One halfmoon is not enough!

Half-moons are peaceful and don’t usually show any aggression, but it might be best just to stay away from mixing their tank with other aggressive species such as cichlids. They prefer to remain at the top of the water when feeling threatened, so an aggressive species may be too much for them.

They are also solitary fish and they shouldn’t be kept with other betta fish – they fight back! If you’re looking to add a little extra color to your tank, then this is the way to go!

This would make a great housing option if you have smaller fish that are just too small to house with a community of larger fish.

Halfmoon betta male fish

Halfmoon betta fish males are not too difficult to keep. The male half-moons have a much shorter fin than the female which is more of an oval shape and generally some form of orange, green, yellow, blue, red coloration. They can be kept in any type of water as long as it is clean with frequent water changes.

If a male is kept with females, it should be introduced at the same time as them and they need to have enough room for everyone to swim around without bumping into each other. When males are in social groups, there will always be one dominant fish that gets all of the female attention.

Spade Tail Betta Fish Care Guide

Halfmoon betta female fish

The halfmoon betta female fish is also known as a “pearl scale”, and can be found in the wild in North America. They are one of the more common strains of Betta splendens; however, they are not as popular because their colors don’t show up well against vegetation or sand backgrounds. This type of Betta fish is typically more expensive than the full-moon male or female, but this does not mean they are of lower quality.

Water condition

Halfmoon betta fish are known to be among the hardiest and most adaptable species of Betta. This is because they require an aquarium with lower water quality than many other breeds, as well as a smaller volume. Most often, halfmoon bettas will do best in a ten-gallon tank or larger; this way their environment can be customized to their specific needs.

Water quality is of the utmost importance for any betta fish, and halfmoon bettas are no exception. They can tolerate a larger range of water conditions than many other breeds because they originate from regions with lower levels of dissolved oxygen in the water. This means that, as long as you keep on top of water changes and the overall quality of your aquarium, you should have no problem keeping a healthy halfmoon betta.

Breeding Halfmoon Betta Fish

Halfmoon betta fish is usually a cross of Siamese and Crowntail varieties, to produce the characteristic pattern. This is not always the case though, as there can also be just purebred Halfmoon Bettas or mixes of different types (such as Blueberry). All Halfmoons have one white spot on their head.

Breeding these fish is usually done by crossing two of the same color to produce offspring that will retain those traits in varying degrees. They have long been a favorite of fishkeepers for their brilliant colors, fin shapes, and the white spot on their heads.

The most common breed is Siamese which has one or two rows of blue spots along its body with multiple fins (usually five). Halfmoon Bettas have only half that number: three fins – two long ones in front and one in back.

Halfmoons are usually a bright blue color or red, with the white spot on their head and one row of bluish-green stripes running down each side of their body. The variety that most resembles a crescent moon is called a Crowntail Betta, which has two rows of greenish spots along its body and three fins.

In the wild, bettas are found in many colors and patterns; Halfmoon Bettas have simply been bred for these traits by fishkeepers over time. The Siamese Betta is just one of those breeds that have become very popular with pet owners because of its striking appearance.

How long do halfmoon betta fish live (Lifespan)

Halfmoon betta fish can live anywhere from two to three years when given proper care. The lifespan of a halfmoon betta fish depends on the species and how well they are cared for. For example, Peppermint angelfish have an average lifespan of five years while some dwarf shrimp can live up to six or seven years in captivity. It is not uncommon for them to live two or three years more though, when given proper care.

Striped Bass Fish (Morone Saxatilis)

In the wild, halfmoon betta fish have a much shorter life expectancy than they do in captivity because they are often preyed on by other animals like birds and larger fishes.

Parasites and diseases

halfmoon betta fish

Some worry that the low-quality water at pet stores makes betta fish more vulnerable to disease, but this is not always true. There are a number of diseases and parasites which can affect halfmoon betta fish in their natural environment too, such as ich, scalarid worms, and anchor worm.

Halfmoon betta fish are often bred in the aquarium trade as well, which can lead to high levels of parasites such as ich or fungus being present right from the start. Ich is highly contagious among other halfmoon betta fish and does not respond very well to treatments; it can also be fatal.

The best way to avoid these problems is by trying to buy your betta fish from a breeder who has screened their water for parasites or diseases and feeds them healthy food. If you do decide to purchase a halfmoon betta fish at a pet store, it’s important that you quarantine the new arrival for at least two weeks before introducing the fish to your existing halfmoon betta community.

Double tail halfmoon betta fish

Double tail halfmoon betta fish

The double tail halfmoon betta fish is a type of betta that has two tails. They have red color on their fins and body, with the exception of the blue finned variety which does not exhibit any other colors but still maintains its trademark double tail. The most common question surrounding this species is “can it live in cold water?

The answer is yes, as long as the water temperature stays in the mid-70s.

This type of betta fish has been around for a while but it’s only become popular recently because it looks more beautiful than its single-tailed counterpart.

Are double tail Halfmoon Bettas rare?

It is not uncommon to see a Double Tail Betta at the pet store, but they are indeed rarer than other types of Bettas. This may be because many people prefer their showy tails and beautiful colors over these fins. These fish can still win in competitions though!

Some Halfmoon bettas have one tail that is shorter than the other, and some have both tails of equal size. A double-tail Betta is a fish that has two long tail fins, which are usually different colors!

Over halfmoon betta fish

Over halfmoon betta fish

The over halfmoon betta fish are becoming more and more popular in the aquarium trade. The name is not a perfect description since these fish do not have “halfmoons” on their body, but rather just an extended dorsal fin. This type of betta has flowing fins that give it an appearance unlike any other kind of Betta fish.