March 12

Sarah Robertson

A Guide to Keeping Betta Imbellis

Betta imbellis, also known as peaceful betta or crescent betta, is a popular freshwater fish that can be found in pet stores. They are beautiful fish and a great choice for a beginning aquarist. They are hardy and relatively easy to care for so long as their basic needs are met.

They have iridescent blue-green scaling on their bodies, as well as a red crescent shape on the tip of their tails. They also have a little bit of red in other fins besides having a deep crimson tail fin. The male Betta Imbellis is more brightly colored and has more elaborate fins than the female Betta Imbellis.


Betta imbellis like most of the other betta fish species come from Southern Thailand, Malaysia, Indonesia. They are found in the peat swamps, black water, streams and other fresh bodies of water. Bettas are indigenous to warm water habitats such as murky, dark marshes, streams, rice paddies, ponds, and sluggish waters like swamps. They usually hang out in the mud at the bottom where the leaf litter accumulates.


The Betta Imbellis has a lifespan of two to four years if appropriately cared for, similarly to other betta species.


The Betta Imbellis can grow up to 2.4 inches, but usually stay around 1.8-2 inches long when fully grown. Male Bettas develop larger and more colorful fins. When compared to the male Betta Imbellis, the female Bettas are smaller, less colorful, and have a broader stomach.


Betta Imbellis would be fine when housed with other fish that are peaceful, not large or aggressive. The Betta Imbellis is a peaceful species of betta which contrasts the male bettas natural fighting instincts.

They would have no interest in being aggressive to their tank mates so long as they are provided with plenty of hiding places in the aquarium. An aquarium of at least 5 gallons is recommended for a Betta Imbellis along with a lot of plant cover and hiding spots. The Betta Imbellis generally get along well with most other compatible companions, including

  • Neon Tetra- the Neon Tetra is a good choice for both its color and activity level. It's not aggressive at all and it's peaceful towards other fish.
  • Ghost Shrimp- While the betta will eat any fish small enough, ghost shrimp are not on this list; betta imbellis simply ignore them. They make excellent scavengers to keep your tank clean.
  • Pleco- Bettas won't attack this fish as long as it's big enough. Plecos are actually algae eaters, which fit right in with the betta imbellis need to keep your tank clean.
  • Snails- Again, the betta imbellis may try to eat them just for being there, but if you have a couple of snails in the tank with your betta, they will keep it clean and provide some great color.
  • Cory Catfish- In a community tank, the cory catfish will get to about three inches long. They're not aggressive and they'll get along great with your betta imbellis fish. Just make sure there are always more cory catfish then bettas in the tank since the bettas will be dominant over them.
  • Pearl Gourami- They're very peaceful and not aggressive at all. There's no reason to worry about a betta being nipped by a gourami, so the two can be housed together in a community tank.
  • Ghost Shrimp- They are excellent scavengers to keep your tank clean. They are often used as an algae eater or a clean-up crew to rid the aquarium of uneaten food and waste, helping out the main inhabitants throughout their time in your home!
Are Betta Imbellis peaceful

Water Conditions

Betta Imbellis requires a minimum of a 10-gallon tank if only one betta is being kept, or a minimum of 20 gallons if multiple fishes are being kept. Water level must be checked regularly. A heater is not required. Since they live in peat swamps and sluggish, shallow waters, the Betta Imbellis does not require a strong filter.

They only require a gentle filtration because it lives in very dirty and still waters. They should not get a filter that is too strong or it may harm the Betta Imbellis long and flowing fins. There are certain water parameters that should be taken care of such as the water temperature should be around 75-85 (much better coloration at warmer temperature above 78 degrees). The water should be around a pH level of 6.5 - 7.5, with water hardness from 5-15 dH.


Feeding your B. Imbellis is simple. They are not very picky and will eat just about anything. They are mainly carnivorous but can be omnivorous that will eat both plant matter and meat. However, it is very important that you feed t hem food that are high in protein and low in fat. Foods that are high in fat can lead to obesity, organ failure, and a shortened life span.

What Kind of Food May Be Fed to a Betta Imbellis?

Live foods- Live foods are usually the best betta food. Some examples of live foods are black worms, mosquito larvae, brine shrimp, bloodworms. They are especially good for conditioning betta imbellis before breeding. It also makes them more active and colorful.

Dry foods- Some examples of dry betta food are dried bloodworms, shrimp pellets, tilapia pellets. These should be used as supplementary diet since it does not contain the vitamins that live foods have.

Vegetables- Betta Imbellis also likes to eat vegetables. They are easy to digest and the Betta Imbellis will love them regardless if they are cooked or not. Cucumber, green beans, zucchini, squash, spinach, romaine lettuce, Bok choy etc. All of these should be blanched before feeding.

Frozen foods- Some examples of betta food that should be frozen before feeding to your Betta Imbellis is brine shrimp, daphnia and bloodworms. Keep in mind that it should be thawed out first since it would not be able to digest if it were still frozen. Remember do not feed this as regular food. Feed sparingly.

What Should Not Be Fed to a Betta Imbellis?

Any kind of food that has fat should not be given to your betta imbellis. There are plenty of foods out there that are high in protein and low in fat, but it is hard to find any food nowadays that does not have fat. The reason why you should avoid feeding food that has fat is because it can cause obesity, high cholesterol, organ failure and a shortened life span.

How Often Do You Need to Feed Betta Imbellis?

Here are some rules of thumb for feeding your bettas. It is important not to overfeed your Betta Imbellis. Only feed them what they will consume in about five minutes. If the Betta Imbellis has eaten their fill, take out any uneaten food.

When caring for Betta Imbellis fry it is important to be aware of water quality so you do not overfeed them. Don't feed them more than once a day and definitely not more than twice a day. Second, feed them what they can eat in about 2 minutes.

Betta Imbellis Breeding Care

The peaceful betta is quite simple to breed, and especially when they are already being kept together. Like most betta fish, the Betta Imbellis requires a large container to breed in. The container or the tank size must be at least 20 gallons and have a small air pump with a bubbling stone to provide oxygen.

There should also be a small heater to keep the water temperature around 80 degrees Fahrenheit, as well as silk plants for their eggs. Filters must be turned off as there should not be any strong water movement during this time, They aren't mouthbreeders; instead, they construct bubble nests.

The male betta will be the one to initiate the breeding. He will build bubble nests out of bubbles on the surface of the water by blowing bubbles, and wait for the female to come near him.

The male will then wrap himself around her until she lays eggs, which he catches in his mouth. When the male collects all of the eggs and fertilizes them, he may then swim down to the boiling stone to keep them safe. It is always best to remove the female betta imbellis from the tank after this process as she may eat the eggs.

The male will keep the eggs for about two to three days before they hatch. After hatching, the male should be removed from the tank to let him rest and recover after all of his hard work. The newly hatched betta should also be removed to avoid cannibalism. The eggs may hatch in one to two days.

How to Take Care of Male Imbellis After Breeding Process?

After the breeding process, it is important to keep an eye on the male betta's health. The Betta Imbellis may be quite exhausted after all of that work, so it should be given proper rest. It is very important to observe if the fish is eating well and if it is swimming around the tank normally.

They must be provided with a variety of food to give them time to regain their strength. Foods such as brine shrimp, daphnia, tubifex, mosquito larvae and bloodworms are all good for the Betta Imbellis to regain energy. It is also important that they have a lot of time to themselves with no other fish in the tank.

How to Take Care of Betta Imbellis Fry

How to Take Care of Betta Imbellis Fry?

If you're looking for a place to start when it comes to caring for Betta Imbellis fry, there are a few things to keep in mind. They're so little that finding food small enough for them to consume will be the most difficult part of the process. Start off with a small live food, such as micro worm, brine shrimp or daphnia. Once their mouths have developed sufficiently, flakes and pellets can be added to the tank, but until then a variety of small live foods will be needed.

How Long Does It Take for Betta Imbellis Fry to Grow?

Betta imbellis Fry takes around four months to mature, depending on how well you care for them. Feeding, water conditions and tank environment play key roles in maturing them properly. However, always make sure not to feed them too much because of the risk of overfeeding. Always stick to the recommended dosage and avoid overfeeding your Betta Imbellis fry.


Bettas are generally very hardy fish and betta imbellis are no exception to this. However, all bettas are prone to certain diseases that can harm or even kill them, so it is important that you know what they are and how to treat them.

  • The tail biting disease- This isn't really a disease but an infection caused by stress, bullying, poor water quality and sometimes cramped living conditions. The Betta Imbellis will begin attacking its tail and fins, resulting in nicks and tears along the body of the fish. This can be easily treated by providing a larger tank for the betta imbellis to live in with plenty food and clean water conditions.
  • Fin rot- You'll know your betta imbellis has this if you see small red or white spots on it. They are usually harmless but can become serious very quickly. This is caused by poor water conditions so make sure the tank is kept clean at all times to avoid contracting this disease.
  • Tail rot- This is an infection that occurs when the water is dirty and contains less oxygen. This is also a very contagious disease, so if you see your betta imbellis tail rotting it's best to treat the water as soon as possible.
  • Ich- This isn't a common disease in betta imbellis, but it does still occur. It's an infection caused by parasites and can be identified by small white spots on the fish. If you see these spots, immediately treat the tank with medication to rid your fish of this disease.
  • Popeye- If one or both eyes of your betta imbellis suddenly swell and protrude from the fish's head, it has Popeye. This is usually caused by a bacterial infection and can be treated by your local fish store with proper medication.
  • Internal parasites- These are parasites that live inside the betta imbellis body and cause serious damage to its organs. You'll most likely never see these or even know they exist, but if your betta has a lowered appetite and is losing weight rapidly, they may have internal parasites.
  • Swim bladder disorder- This can be caused by poor water conditions or genetic problems that the betta imbellis will always have to deal with. The swim bladder becomes enlarged and causes the betta imbellis to float in an upright position instead of swimming down below. But with proper care, your betta can live a healthy, normal life.
  • Velvet disease-This is a common disease in betta imbellis that causes the fish to become covered with small, fine hairs. It's caused by parasites and can be treated by your local fish store.

Symptoms of a Sick Betta

There are several symptoms to look for if you suspect that your Betta Imbellis is sick. The following list will help you know what to look out for and how to treat these symptoms if they occur.

Loss of appetite- If your betta imbellis stops eating for several days or shows a big decrease in appetite, it could be suffering from stress, but get them checked by a store clerk just to make sure.

Dull coloring on the body of the fish- If your betta imbellis body appears to be less shiny than usual, this is a sign of stress. Stress lowers the immune system so it's important that you take care of this problem before it turns into something worse. If left untreated, stress can cause problems with eating habits and disease.

Lethargic swimming- This means the betta imbellis is swimming in circles or keeping its fins clamped close to the body. They do this because they are tired, sick, depressed or frightened. If your fish is lethargic it needs to be treated quickly by a store clerk before anything serious occurs.

Hanging at the top of the tank- This is usually accompanied by labored breathing and sometimes gasping for air. Betta imbellis is usually hanging near the top because it can't swim properly due to stress, bullying, poor water quality or cramped living conditions.

Decreased activity, swimming skills and coordination- When your Betta Imbellis becomes sick, it usually stops moving around because it's tired and weak. If you see your fish having problems staying upright or swimming in straight lines, make sure to get them checked out by a store clerk right away.

White spots along its body or head- This is an infection that's caused by parasites. These spots are actually the parasite's eggs and they're usually found on the head, belly or gills of your fish. If you see these white spots, treat them immediately because left untreated they will turn into pop-eye.

Frequent Questions

Are Betta Imbellis Rare?

Betta Imbellis are rare in the wild, but they are now being breed in captivity. They can be found at many local pet stores and they are very common as pets as well as aquarium fish.

How Do I Know if My Betta Is Imbellis?

The Betta Imbellis are a lovely sort of Betta fish. They may be identified from other betta species by the iridescent blue-green scaling on their bodies and a red crescent shape on the tail fin. They also have a little amount of red on their other fins, in addition to having a deep crimson color on the tail fin.

How to Identify Male From Female Betta Imbellis?

The Betta Imbellis may be identified more easily as the females are rounder and less colorful. The males have an extended dorsal fin and a large and colorful tail. With a deep crimson color on the tail fin.

Are Betta Imbellis Peaceful?

Unlike any other betta fish like Plakats and Hellboy betta, Betta Imbellis is a pretty peaceful fish. They live in swamps and peat bogs where there isn't enough room for more than one betta to survive. This results in a mellower betta that will not fight with other male Bettas for territory.

When being kept as pets, the Betta Imbellis will fight for their home, which is the plant or bowl, but they won't fight to the death. They are also peaceful towards other species of fish and do not eat live plants. They are the type that may be maintained in community aquariums and are simple to take care of. 

How Should the Tank Be Decorated?

Betta Imbellis likes to swim in the top and middle of the water. They like to hide among plants and décor, especially those with long leaves. If you want your Betta Imbellis to be very happy, make sure there are enough hiding places for them. That means lots of plants, real or fake.

If you don't have enough hiding spots, your Betta Imbellis may become stressed out and may even jump out of the water to search for places that they can hide in. You should also include flat rocks or driftwood if you want your Betta Imbellis to get exercise when it's swimming around.

Wrapping Up

Betta Imbellis also known as Siamese Fighting fish have been a popular choice for aquarium owners. Bettas come from Thailand, and they live in rice paddies, drainage ditches or other quiet shallow areas of nature. Unlike other betta species, Betta Imbellis are known to be peaceful betta and can be housed with other friendly and non-aggressive community fish.

If housing more than one Betta together, it's important to provide each fish with enough space and hiding places so they feel secure. The proper care for your Betta Imbellis is the key to keeping them alive and healthy. It's critical to offer your Betta a suitable habitat, clean water, and nutritious food as well as maintaining appropriate water parameters in order to keep it happy and healthy for its entire life. If you give them what they need, you'll get many years of enjoyment out of your beautiful Betta fish.

Sarah Robertson

I am a passionate blogger who also happens to be a fish keeping enthusiast. Writing about my hobby is something that I absolutely love to do, and it's no secret that my chosen topic is always centered around fish keeping.

Sarah Robertson

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}

Subscribe to our newsletter