Turquoise Rainbow Fish

Turquoise Rainbow Fish- All You Need To Know

The turquoise rainbow fish is one of the most beautiful fish in Lake Kutubu.

The Turquoise Rainbowfish of Lake Kutubu is one of the most unique and typical rainbowfish species available. This is an ideal addition to a planted aquarium or a community aquarium.

Many exotic kinds of fish can be kept, but turquoise fish are among the most unknown. Turquoise blue rainbow fish are among the most visually appealing and vibrant. Their deep blue colors make them stand out from the other rainbowfish species.

This fish counts 4.9 inches in length and shows great color-changing traits. To keep them as schooling fish, you should provide them with an omnivorous diet and suitable water needs in a 30-60 gallon tank. In this blog, let’s find out more about turquoise rainbow fish.

Turquoise Rainbowfish: What are they?

The Lake Kutubu Rainbowfish (Melanotaenia lacustris) is a vibrant species known for its deep turquoise, blue, and yellow colors.

It is a highly active fish, living in schools within Papua New Guinea’s Lake Kutubu and the connected River Soro, calm lakes.

Male and female rainbowfish show extremely vibrant coloration, but mature males are larger and have deeper bodies.

Lake kutubu rainbow fish are believed to be tolerant of other fish species in Lake Kutubu. However, the size and activities of this aquarium can be threatening for timid fish.

While it preys on dwarf and bamboo shrimp, you can keep it with peace-loving invertebrates that aren’t large enough to be considered prey.

Aquariums with a lot of plants will exhibit the most vivid colors. However multiple males are included because subdominant males won’t be intimidated by chief males.

As with other rainbowfish species, turquoise fish often exhibit better color when placed on a darker substrate. Keeping this fish in soft or acidic waters is not advised despite its versatility.

There are plenty of limestone residues derived from subsurface water springs throughout the natural habitat of Lake Kutubu Turquoise Rainbowfish. As a result, the pH range of the natural habitat tends to be alkaline.

Turquoise Rainbowfish, or Melanotaenia Lacustris, has a long body shape. In addition to having a very long body, the fish’s body tends to deepen with age.

Blue rainbow fish: Appearance

Turquoise Rainbowfish has the distinct characteristic that its head does not follow its body’s contouring lines. As a result, the head will be much slimmer and triangular.

As their eyes are large and significant, they deserve special attention. There is also something quite impressive about the dorsal fins of Turquoise Rainbow fish.

The Lake Kutubu Turquoise Rainbowfish can also display a wide range of colors. Their exotic dark blue hue, however, is what makes them so famous. Therefore, turquoise blue rainbow fish are commonly known for their appearance.

The top of these fish is cobalt blue or teal, and the bottom is green, silver, or yellow.

Usually, Turquoise Rainbowfish exhibit a thin cobalt blue stripe starting from the rear portion of their tail that tends to disappear near the middle of their body.

Turquoise Rainbow fish: Size

It is not unusual to find turquoise rainbowfish that are quite large. The length of these fish is moderate instead of extremely long. As a rule of thumb, this fish species can reach 4.9 inches or 12.47 cm.

Turquoise Rainbow fish: Temperament

Many Melanotaenia Lacustris species can be categorized as community fish. There is something playful and exciting about them by nature, and they are also playful by nature.

As a result of the other fish species in a community tank, these turquoise Rainbow fish are more likely to become violent and territorial. Hence, this is about rainbow fish care.

Our Other Articles :

How Big Is A Chihuahua Brain- All You Need To Know

Coonhound Husky Mix- Everything You Need To Know

Can Dogs Eat Orange Chicken- All You Need To Know

Gator Pitbull Bloodline- What You Need To Know

Shiba Inu Mix With Pitbull- All You Need To Know

Can Dogs Eat Monk Fruit? What You Need To Know

Chlorella For Dogs – All You Need To Know

Boxer Basenji Mix- All You Need To Know

Yorkie Poo Vs Maltipoo: All You Need To Learn

Why are my cats ears warm?- All You Need To Know

Span of life

By nature, these fish species, Turquoise Rainbows, are very hardy in their survival. The lifespan of freshwater fish tends to be longer than that of other freshwater fish species.

Generally, Turquoise Rainbowfish have an average lifespan of around five years. On the other hand, this type of fish can also live as long as 8 years in a properly maintained tank, subject to the right kind of care and diet.

Rainbow Fish Care

The care of turquoise rainbowfish in an aquarium is not at all difficult. For this species of Lake Kutubu rainbow fish to remain healthy, the lake’s water quality must be high.

If the tank is densely stocked, changing the water more frequently is necessary. You should change at least 25-50% of the water in your tank every week.

Treating rainbowfish frequently is usually extreme because they are often too hard to become ill. However, it is important to note that if they are not properly cared for, they may contract some prevalent fish diseases.

Adding any new fish, aquarium plants, substrate, or tank décor can lead to the growth of bacteria within the tank. However, it is important to note that Turquoise Rainbow fish will not easily cause an outbreak of diseases in the community tank. Fish diseases are usually limited to a single species of fish.

It is, therefore, very important to feed your freshwater fish a balanced diet to ensure that they live a long, healthy life in your tank. Ensuring the water is well clear and stable for proper immunity to set is also important.

Diet & Nutrition

A turquoise rainbow fish will readily accept high-quality dry food. It must also be provided with various small, frozen, or live food items to remain healthy and vibrant.

It is generally easy to feed Melanotaenia lacustris in aquariums. Typically, rainbowfish have an omnivorous diet, meaning they can consume all the essential nutrients for fish.

The natural habitat of the freshwater rainbowfish, Melanotaenia lacustris, is that they feed upon small crustaceans, algae, and flies.

It is easy for them to eat high-quality flakes or pellets of food while in captivity.

It is also vital for turquoise rainbow fish to consume live food elements to maintain a variety of diets.

Rainbow fish melanotaenia is best treated with fish-based foods, such as tubifex worms, brine shrimp, ghost shrimp, and bloodworms.

Additionally, vegetables could also be included in their diets. Thus, providing them with better nutrition and enabling them to produce more vibrant colors.

The throats of Turquoise Rainbowfish are typically smaller. Due to this, it is recommended that they are fed at least 2-3 times a day in smaller quantities.

Giving them food they can consume within five minutes is important.


Looking for more about turquoise rainbow fish? Read this blog and find all your answers about rainbow fish care and turquoise blue rainbow fish.


How big do Turquoise Rainbow fish get?   

The species can grow up to 12.47 cm (4.9 inches) in length.

How many Turquoise Rainbow fish should be kept together?     

They’re schooling fish and do great in small groups of 3 to 4.

What do you feed a Turquoise Rainbow fish?

In addition, turquoise Rainbowfish need a variety of diets to live food.

How can you tell if a rainbow fish is a male or female turquoise?  

The males are bigger and brighter colored than the females. Female turquoise has a shallower body than male.