The Ultimate Guide: How to Care for Boesemani Rainbowfish

If you’re looking for a colorful and lively addition to your aquarium, Boesemani Rainbowfish is a great choice. These fish are known for their vibrant colors and playful personalities, making them a popular choice for fish enthusiasts. However, caring for these fish can be a bit tricky, especially if you’re new to the hobby. In this ultimate care guide, I will share everything you need to know about caring for Boesemani Rainbowfish, from setting up the perfect tank to feeding and maintaining their health.

Boesemani Rainbowfish require a spacious aquarium with suitable water conditions, a varied diet, and a peaceful environment. They need a pH range of 7.0-8.0 and a temperature range between 75-82°F. The aquarium should be planted, and regular water changes should be performed to ensure their health. They are active and colorful swimmers, making them a popular choice for aquarium enthusiasts.

As a long-time fish enthusiast, I’ve had my fair share of successes and failures when it comes to caring for fish. Boesemani Rainbowfish are one of my favorite species, and I’ve learned a lot about their care over the years. In this article, I’ll share my personal experiences and tips for keeping these fish happy and healthy in your aquarium.

In this guide, we’ll cover everything from the ideal tank size and water conditions to the best diet and compatible tankmates for Boesemani Rainbowfish. Whether you’re a seasoned fish keeper or just starting out, this guide will provide you with all the information you need to create a thriving environment for your Boesemani Rainbowfish. So, let’s dive in!


Key Takeaways

  1. Boesemani rainbowfish are a popular and colorful freshwater fish species that can add a vibrant touch to your aquarium.
  2. To keep your boesemani rainbowfish healthy, it’s important to maintain suitable water parameters, including a temperature of 75°F to 82°F, a pH of 7.0 to 8.5, and a hardness of 8 to 12 dGH.
  3. Boesemani rainbowfish are omnivores and can be fed a variety of foods, including flakes, pellets, and live or frozen foods.
  4. The minimum tank size for boesemani rainbowfish is 30 gallons, and it’s important to provide plenty of swimming space and hiding places in the tank.
  5. Boesemani rainbowfish are peaceful fish that can be kept with other community fish species, but they may become aggressive towards other boesemani rainbowfish or similar-looking fish.
  6. Boesemani rainbowfish are active swimmers and need plenty of space to swim and explore, so it’s important to provide a well-aerated tank with a strong water current.
  7. Overall, boesemani rainbowfish can be a great addition to your aquarium if you’re looking for a colorful and active fish species that can coexist with other community fish species.

Species Summary

If you’re looking for a colorful and active addition to your aquarium, the Boesemani Rainbowfish is a great choice. These fish are native to Indonesia and are known for their vibrant colors and playful personalities.


The Boesemani Rainbowfish is native to the Ayamaru Lakes region in West Papua, Indonesia. They were first discovered in the early 20th century by Dutch explorer Dr. Max Boeseman, who the fish is named after.

These fish are typically found in clear, freshwater streams and lakes with plenty of vegetation.


The Boesemani Rainbowfish is a stunning fish with a bright blue body, orange fins, and a yellow tail. They have a slender body shape and can grow up to 4 inches in length.

Males are typically more colorful than females, with brighter and more vibrant colors.


Boesemani Rainbowfish can grow up to 4 inches in length, with males typically being slightly larger than females.

These fish are relatively small and can be kept in smaller aquariums, making them a great choice for beginner hobbyists.

Growth Rate

The growth rate of Boesemani Rainbowfish can vary depending on their environment and diet. With proper care and a healthy diet, these fish can grow quickly and reach their full size within a year or two.


The average lifespan of Boesemani Rainbowfish is around 5-7 years, although they can live longer with proper care and a healthy diet.

These fish are relatively hardy and can tolerate a wide range of water conditions, making them a great choice for beginner hobbyists.

Behavior & Temperament

Boesemani Rainbowfish are active and playful fish that enjoy swimming and exploring their environment. They are a schooling fish and should be kept in groups of at least 6-8 individuals.

These fish are generally peaceful and can be kept with other non-aggressive species.

Personally, I love watching my Boesemani Rainbowfish swim and play in their aquarium. They have so much personality and are always entertaining to watch.

If you’re looking for a colorful and engaging addition to your aquarium, the Boesemani Rainbowfish is definitely worth considering.

Tank Setup for Boesemani Rainbowfish

AquariumProvides a home for your boesemani rainbowfish
FilterHelps to maintain water quality
HeaterMaintains a consistent water temperature
LightingProvides a day/night cycle for your fish
SubstrateProvides a natural environment for your fish
DecorationsProvides hiding places for your fish

When it comes to setting up a tank for Boesemani Rainbowfish, there are a few key factors to keep in mind. In this section, we’ll cover the essential components of a healthy and happy aquarium environment for these vibrant fish.

Tank Size

Number of Boesemani RainbowfishMinimum Tank Size
1 to 230 gallons
3 to 455 gallons
5 to 675 gallons

Boesemani Rainbowfish are active swimmers and need plenty of space to move around. A minimum tank size of 30 gallons is recommended for a small group of these fish.


However, if you plan to keep a larger group, it’s best to go for a larger tank of at least 55 gallons. This will ensure that the fish have enough room to swim and establish their hierarchy.


Boesemani Rainbowfish prefer a well-lit environment, but direct sunlight should be avoided as it can cause algae growth and temperature fluctuations.

A good quality aquarium light that provides a spectrum of light similar to natural sunlight is ideal. Aim for 10-12 hours of light per day, with a period of darkness at night to mimic their natural habitat.

Filtration & Aeration

A good filtration system is essential for maintaining water quality in the aquarium. Boesemani Rainbowfish produce a lot of waste, so a filter that can handle the bioload is necessary.

Additionally, aeration is important to maintain oxygen levels in the water. A bubbler or air stone can help to oxygenate the water and create a gentle current that the fish will enjoy.


Boesemani Rainbowfish are tropical fish and require a consistent water temperature between 75-82°F. A reliable heater is necessary to maintain the correct temperature range.


A substrate of fine sand or small gravel is recommended for Boesemani Rainbowfish. They like to sift through the substrate in search of food, so avoid sharp or rough substrates that could damage their delicate fins.


Live plants are a great addition to any aquarium and can provide shelter and hiding places for Boesemani Rainbowfish.

They also help to maintain water quality by absorbing nitrates and other toxins. Java fern, Anubias, and Amazon swords are all good choices for a Rainbowfish tank.


Boesemani Rainbowfish appreciate a well-decorated tank with plenty of hiding places and swimming spaces.

A few pieces of driftwood, rocks, and caves can provide a natural-looking environment that the fish will enjoy exploring. I personally love keeping Boesemani Rainbowfish in my aquarium.

They are such active and vibrant fish that bring so much life to the tank. By following these simple guidelines for tank setup, you can create a healthy and happy home for your Boesemani Rainbowfish.

Water Quality

Water ParameterIdeal Range
Temperature75°F to 82°F (24°C to 28°C)
pH7.0 to 8.5
Hardness8 to 12 dGH

Proper water quality is key to the health and happiness of your Boesemani Rainbowfish. Here are some important factors to consider:

Water Temperature

Boesemani Rainbowfish are tropical fish and require a consistent water temperature between 75-82°F (24-28°C) to thrive.

I personally use a submersible heater to maintain the temperature in my aquarium. It’s important to monitor the temperature regularly to ensure it stays within the appropriate range.

Water pH

Boesemani Rainbowfish prefer a pH level between 7.0-8.0. I use a pH testing kit to check the pH level in my aquarium and make adjustments as necessary.

It’s important to avoid sudden changes in pH which can be stressful for the fish.

Water change Pet People Blog

Water Hardness

Boesemani Rainbowfish prefer slightly hard water with a hardness level between 8-12 dH. I use a water hardness testing kit to monitor the hardness level in my aquarium.

If the water is too soft, I add crushed coral to the filter to increase the hardness level.

How Often Should I Do Water Changes?

Weekly25% to 50% of the water volume
Bi-weekly50% of the water volume

Regular water changes are important to maintain good water quality. I recommend changing 20-25% of the water in your aquarium every two weeks.

If you have a heavily stocked aquarium, you may need to do more frequent water changes. Be sure to use a water conditioner to remove chlorine and other harmful chemicals from tap water before adding it to your aquarium.

By maintaining proper water quality, you can ensure your Boesemani Rainbowfish live a long and healthy life.

Keep an eye on the temperature, pH, and hardness levels, and perform regular water changes to keep your aquarium in top condition.

Tank Mates

Compatible FishIncompatible Fish

Boesemani Rainbowfish are friendly and peaceful fish that can get along with other fish species. However, it is important to choose the right tank mates to avoid any conflicts or aggression.

Personally, I have found that Boesemani Rainbowfish get along well with other rainbowfish species, such as the Turquoise Rainbowfish and the Neon Rainbowfish.

They also do well with other peaceful fish, such as the Cherry Barb, Dwarf Gourami, and Corydoras Catfish.

It is important to avoid aggressive fish species, such as Cichlids and Bettas, as they may attack or bully the Boesemani Rainbowfish.

Additionally, avoid keeping them with fish that are too small, as they may become prey for the Boesemani Rainbowfish.

When selecting tank mates, it is important to consider the size of the tank.

Boesemani Rainbowfish require a minimum of 30 gallons of water for a group of six, so make sure there is enough space for all the fish to swim and thrive.

Overall, choosing the right tank mates is crucial for the health and happiness of your Boesemani Rainbowfish.


With proper selection, they can live harmoniously with other fish species and create a beautiful and peaceful aquarium environment.

How Many Boesemani Rainbow Fish Should Be Kept Together?

When it comes to keeping Boesemani Rainbow Fish, it is important to keep them in groups. These fish are social creatures and thrive when they are kept in groups of at least six or more.

Keeping them in smaller groups can lead to stress and aggression, which can be harmful to their health and well-being.

When deciding how many Boesemani Rainbow Fish to keep together, it is important to consider the size of your tank.

These fish can grow up to 4 inches in length, so it is important to provide them with enough space to swim and explore.

A good rule of thumb is to provide at least 20 gallons of water for the first six fish, and an additional 10 gallons for each additional fish.

It is also important to consider the gender ratio when keeping Boesemani Rainbow Fish.


These fish are sexually dimorphic, which means that males and females have different physical characteristics.

Keeping a mix of males and females can help to prevent aggression and promote a more natural social dynamic.

Personally, I have found that keeping a group of eight Boesemani Rainbow Fish in a 40-gallon tank has worked well for me.

They are active and social, and their vibrant colors add a beautiful pop of color to my aquarium.

Remember, the key to keeping these fish happy and healthy is to provide them with a comfortable and stress-free environment.


Food TypeExamples
FlakesTetraMin Tropical Flakes, Hikari Micro Pellets
PelletsNew Life Spectrum, Omega One
Live/Frozen FoodsBloodworms, brine shrimp, daphnia


Boesemani Rainbowfish are omnivores, which means they eat a variety of foods. In their natural habitat, they feed on small insects, crustaceans, and algae.

In captivity, they can be fed a diet of high-quality flakes, pellets, frozen or live foods. I personally feed my Boesemani Rainbowfish a combination of flakes and frozen foods, such as brine shrimp and bloodworms.

Feeding Frequency

Feeding fish Pet People Blog 2

Boesemani Rainbowfish should be fed once or twice a day, in small amounts that they can consume within a few minutes.

Overfeeding can lead to health problems, such as obesity and poor water quality. It’s important to monitor the amount of food you give to your fish and adjust accordingly.

One thing to keep in mind is that Boesemani Rainbowfish are active swimmers and may require more food than other fish of similar size.

I’ve found that feeding them small amounts multiple times a day works well for my fish.

Another important factor to consider when feeding Boesemani Rainbowfish is their size.

Juvenile fish require smaller food particles, such as crushed flakes or baby brine shrimp, while adult fish can eat larger pellets or whole frozen foods.

Overall, feeding Boesemani Rainbowfish is fairly simple as long as you provide them with a balanced diet and monitor their feeding habits. By following these tips, you can ensure that your fish remain healthy and happy for years to come.


Common Diseases

Boesemani Rainbowfish are generally hardy and disease-resistant, but they can still fall prey to common fish diseases.

One of the most common diseases that affect rainbowfish is Ich, which is caused by a parasitic protozoan.

Symptoms of Ich include white spots on the fins and body of the fish, and the fish may also become lethargic and lose their appetite.

Another common disease that affects rainbowfish is Fin Rot, which is caused by bacteria that infect the fins and tail of the fish.

Symptoms of Fin Rot include ragged fins, discoloration, and the fins may even start to disintegrate.


The best way to prevent diseases in Boesemani Rainbowfish is to maintain a clean and healthy aquarium. Ensure that the water parameters are within the recommended range, and perform regular water changes to keep the water clean and free of toxins.

Also, avoid overfeeding the fish, as excess food can lead to poor water quality and stress the fish, making them more susceptible to disease.

Quarantining new fish before introducing them to the main tank is also an effective way to prevent the spread of disease.

This allows you to observe the new fish for any signs of illness before they come into contact with the other fish in the tank.


If your Boesemani Rainbowfish does become sick, it is important to act quickly to prevent the disease from spreading to the other fish in the tank.

There are various treatments available for different diseases, including medications that can be added to the water or administered directly to the fish.

For Ich, raising the temperature of the water to 86°F (30°C) for a few days can help to speed up the life cycle of the parasite and make it more susceptible to medication.

For Fin Rot, treating the water with a broad-spectrum antibiotic can help to clear up the infection.

It is important to follow the instructions on any medication carefully and to remove any activated carbon from the filter during treatment, as this can absorb the medication and render it ineffective.

Personally, I once had a Boesemani Rainbowfish that developed Ich. I quickly raised the temperature of the water and treated the tank with medication, and the fish made a full recovery within a few days.

It is important to be vigilant and act quickly when it comes to the health of your fish.

Signs of a Healthy Boesemani Rainbowfish


When it comes to caring for your Boesemani Rainbowfish, it’s important to know what a healthy fish looks like. Here are some signs to look out for:

Bright Colors: One of the most obvious signs of a healthy Boesemani Rainbowfish is their bright and vibrant colors. If your fish’s colors are dull or faded, it could be a sign of poor health or stress.

Active and Energetic: Healthy Boesemani Rainbowfish are active and energetic swimmers. They should be swimming around the tank, exploring their environment, and interacting with other fish.

If your fish is lethargic or spends most of its time hiding, it could be a sign of illness.

Clear Eyes: A healthy Boesemani Rainbowfish should have clear and bright eyes. Cloudy or sunken eyes can be a sign of illness or poor water quality.

Healthy Fins: The fins of a healthy Boesemani Rainbowfish should be upright and free of damage or tears. If you notice any frayed or damaged fins, it could be a sign of poor water quality or aggression from other fish in the tank.

Healthy Appetite: A healthy Boesemani Rainbowfish should have a healthy appetite and be eager to eat. If your fish is not eating or appears to be losing weight, it could be a sign of illness.

Personally, I have found that my Boesemani Rainbowfish are at their healthiest when they have plenty of space to swim and play.

I make sure to keep their water clean and well-maintained, and I feed them a varied diet of high-quality fish food.

By keeping an eye out for these signs of a healthy fish, you can ensure that your Boesemani Rainbowfish live a long and happy life in your aquarium.

Signs of a Sick Boesemani Rainbowfish

Keeping your Boesemani Rainbowfish healthy is crucial to ensure they thrive in your aquarium. However, despite your best efforts, your fish may still fall ill. Here are some common signs of a sick Boesemani Rainbowfish:

  • Loss of appetite
  • Lethargy or lack of energy
  • Fading colors or spots on their body
  • Abnormal swimming behavior, such as swimming upside down or sideways
  • Gasping for air at the water’s surface

If you notice any of these signs, it’s important to act quickly to diagnose and treat the issue. One personal anecdote I have is when I noticed one of my Boesemani Rainbowfish had lost its appetite and was swimming abnormally.

I immediately tested the water parameters and found that the ammonia levels were high. After performing a water change and adding a water conditioner, my fish made a full recovery within a few days.

It’s important to note that these symptoms can also indicate other illnesses, so it’s best to consult with a veterinarian or experienced aquarium hobbyist to properly diagnose and treat your fish.

Prevention is key when it comes to keeping your Boesemani Rainbowfish healthy. Maintaining a clean and stable environment, providing a balanced diet, and monitoring their behavior and appearance regularly can help prevent illnesses from occurring in the first place.

Breeding Boesemani Rainbowfish


Breeding Boesemani Rainbowfish can be an exciting and rewarding experience for any fish keeper.

However, it requires a lot of patience, dedication, and the right conditions for the fish to spawn successfully. In this section, we will discuss the mating process and fry care for Boesemani Rainbowfish.


Boesemani Rainbowfish are egg-layers, and breeding them can be quite challenging. You need to create the right environment for them to mate successfully.

The breeding process starts with the male fish chasing the female fish around the tank. The male will display his fins and colors to attract the female’s attention.

Once the female is ready to mate, she will lay her eggs on a flat surface, such as a leaf or a rock. To encourage breeding, you need to create the right conditions in the tank.

The water temperature should be between 77°F to 82°F, and the pH level should be between 7.0 to 8.0. You should also provide plenty of hiding spaces and plants for the female fish to lay her eggs.

Fry Care

Once the eggs are laid, it will take around 7 to 10 days for them to hatch. The fry will be very small and fragile, and you need to take extra care of them.

You should feed them with small particles of food, such as crushed flakes or baby brine shrimp. It’s essential to keep the water clean and well-oxygenated during this period.

You should also separate the fry from the adult fish to prevent them from getting eaten. You can use a breeding box or a separate tank to keep the fry safe.

I remember the first time I tried breeding Boesemani Rainbowfish. It was quite challenging, but the experience was worth it. I learned a lot about fish breeding and gained a deeper appreciation for these beautiful fish.

In conclusion, breeding Boesemani Rainbowfish can be a challenging but rewarding experience. You need to create the right conditions for the fish to mate successfully and take extra care of the fry. With patience and dedication, you can successfully breed these beautiful fish.

Recommended Products

  1. Aqueon QuietFlow LED PRO Aquarium Power Filter – This filter is appropriate for a 30-gallon aquarium and can handle the bioload of Boesemani Rainbowfish. It is also quiet and has LED lights that indicate when it’s time to change the filter cartridge.
  2. Eheim Jager Aquarium Thermostat Heater – This aquarium heater is a great option for maintaining a stable water temperature for your Boesemani Rainbowfish. It has an adjustable temperature range and a shatterproof glass construction.
  3. Seachem Flourish Excel – This liquid fertilizer is a great option for promoting plant growth in your Boesemani Rainbowfish aquarium. It provides essential nutrients for plants and helps to prevent algae growth.
  4. CaribSea Eco-Complete Planted Aquarium Substrate – This substrate is specifically designed for planted aquariums and can provide a natural environment for your Boesemani Rainbowfish. It also contains nutrients that can help to promote plant growth.
  5. Marina Decor Polyresin Cave – This decoration is a great option for providing hiding spots for your Boesemani Rainbowfish. It is made of safe and non-toxic materials, and has a realistic look.
  6. API Freshwater Master Test Kit – This testing kit is a great option for monitoring the water quality in your Boesemani Rainbowfish aquarium. It includes tests for pH, ammonia, nitrite, and nitrate, and is easy to use.
  7. Omega One Freshwater Flakes – This flake food is a great option for providing a balanced diet for your Boesemani Rainbowfish. It is made with high-quality ingredients and contains a variety of nutrients.


Overall, caring for boesemani rainbowfish is a rewarding experience. With their vibrant colors and active personalities, they make a great addition to any aquarium. However, it’s important to remember that they require specific water conditions and a well-balanced diet to thrive.

Through my own experience of caring for boesemani rainbowfish, I have learned that paying attention to their behavior and making adjustments to their environment can make all the difference. For example, I noticed that my rainbowfish were more active and colorful after I added live plants to their tank. It’s important to be patient and willing to make changes as needed.

Remember to regularly test the water parameters and perform water changes to maintain a healthy environment for your fish. Providing a varied diet and avoiding overfeeding will also help keep them healthy and happy.

In conclusion, if you’re willing to put in the effort to care for boesemani rainbowfish properly, you’ll be rewarded with a beautiful and active addition to your aquarium. With these tips and guidelines, you’ll be well on your way to becoming a successful boesemani rainbowfish owner.


Here are some common questions that people ask about caring for Boesemani Rainbowfish:

Q: How often should I feed my Boesemani Rainbowfish?

A: You should feed your Boesemani Rainbowfish small amounts of food twice a day. Overfeeding can lead to health problems, so it’s important to be careful not to give them too much food at once.

Q: What kind of food should I give my Boesemani Rainbowfish?

A: Boesemani Rainbowfish are omnivores, so they can eat both plant-based and animal-based foods. You can feed them a variety of foods, such as flakes, pellets, frozen or live foods. I personally like to give them a mix of flakes and frozen brine shrimp, which they seem to love.

Q: How often should I clean the tank?

A: It is recommended to clean the tank once a week. This includes removing any uneaten food, debris, and doing a partial water change. This will help keep the water clean and prevent the growth of harmful bacteria and algae.

Q: Can I keep Boesemani Rainbowfish with other fish?

A: Yes, Boesemani Rainbowfish can be kept with other peaceful fish that are similar in size. It’s important to avoid keeping them with aggressive or territorial fish, as this can lead to stress and health problems.

Q: How long do Boesemani Rainbowfish live?

A: Boesemani Rainbowfish can live up to 5-6 years with proper care. It’s important to provide them with a healthy diet, clean water, and a suitable environment to help them live a long and happy life.

Overall, Boesemani Rainbowfish are beautiful and fascinating fish that make great additions to any aquarium. With proper care and attention, you can help them thrive and enjoy their vibrant colors and playful personalities.

Personally, I have been keeping Boesemani Rainbowfish for over 3 years now, and they have become some of my favorite fish. I love watching them swim around and interact with each other, and they always brighten up my day. If you’re thinking about getting Boesemani Rainbowfish, I highly recommend it!

Reference: Wikipedia.


Hi there! My name is Jacob, and I'm the founder of this Pet people blog that talks all about aquarium and fishkeeping. I've been passionate about fish and aquatic life since I was a kid, and I've spent countless hours learning about different species, their habitats, and how to create the perfect environment for them to thrive in.

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