Experience the Beauty of Bloodfin Tetras

The bloodfin tetra is a freshwater aquarium fish that can grow to a maximum length of 2.5 inches (6.35 cm). It has a thin body, a large head with a long snout, big eyes, and fins shaped like an anis. Its fins are long and thin and look pretty much like a blood stain.

Bloodfin tetra’s coloration also makes it stand out from the rest of the tank’s water inhabitants, making it a beautiful focal point for your aquarium setup. This fish species is a joy to keep in an aquarium due to its fascinating behavior and unusual appearance.

Like most tetras, bloodfin tetras are peaceful fish that are hardy and easy to care for. However, care must always be taken when handling them, as they have a tendency to bleed excessively if injured or stressed. Keep reading this blog to know more about caring for these beautiful fish and how they can be an ideal tankmate for beginners or hobbyists looking for an entertaining species to keep.

bloodfin species summary

Species Summary

Bloodfin tetras are a popular freshwater tank fish. They are one of the smallest tetra species, growing to a length of around 2 inches. Bloodfin tetras have a silvery body with a greenish tint. Their fins are red and they are known for their swimming ability and vibrant coloration.

Bloodfin tetras can tolerate a wide range of water parameters, making them an appealing choice for many aquarium enthusiasts. They can be kept in a tank without a heater, making them an excellent choice for beginners. Bloodfin tetras are easy to care for and thrive in a school of six or more.

Bloodfin tetras also enjoy swimming in the water column and should be kept in an aquarium with ample vegetation and hiding places for them to explore. Bloodfin tetras are egg-laying fish and their breeding should be monitored carefully.

Once breeding is underway, the fish should be removed so that they do not become too accustomed to being around other adult fish.


Bloodfin tetras have a sleek silver body, red fins, and a distinctive coloration of crimson fins against a blue-silver body. They are an aquarium favorite due to their unique coloration and peaceful temperament.

Bloodfin tetras are known for their vibrant red fins, which stand out against the silvery body of these fish. When stressed or scared, bloodfin tetras change their color to blend in with their environment.

These fish are easy to recognize due to their colorful fins and contrast against the silvery body. These tetras are a must-have for any aquarium enthusiast.


Bloodfin Tetras are small freshwater fish that can be easily maintained in a community aquarium. They typically grow up to 2 inches in size and prefer a temperature range of 22–28 degrees Celsius.

These fish can be peaceful community fish that are often seen schooling in aquariums. They are known for their brilliantly colored fins, making them a popular choice among aquarists.

However, it is important to provide them with adequate food and water quality to ensure their health and longevity. Bloodfin Tetras are an excellent choice for beginners looking to add a colorful species to an aquarium.

They are peaceful and easy to care for, making them a great choice for community tanks. However, they require a tank of at least 10 gallons for optimal swimming space.

Disease Potential

Bloodfin tetras are a colorful and hardy freshwater aquarium fish that are popular for their peaceful nature and unique appearance. However, they are also known to be susceptible to a range of diseases, such as Neon Tetra Disease and Mycobacteriosis.

This can be a serious problem in an aquarium if not properly maintained. In addition to these diseases, bloodfin tetras are also vulnerable to bacterial infections such as Columnaris, which can be passed on to humans and other species in the aquarium.

To avoid introducing harmful bacteria into an aquarium, it is important to quarantine any new additions for a minimum of two weeks. This will help prevent the spread of disease and ensure the safety of all fish within the tank.

Bloodfin tetras are an attractive addition to any community aquarium but require special care and attention if they are to thrive and maintain their health.

It is vital to ensure good water quality, clean the tank regularly, regulate temperature, and provide a suitable food source. Other than that, bloodfin tetras are peaceful fish that enjoy living in a well-maintained community tank and can be a wonderful addition to any aquatic setup.


Bloodfin tetras are a freshwater fish that typically live for 5-8 years in captivity if cared for properly. They are an aggressive breed and need a tank large enough to accommodate their natural behavior of schooling and piranha-like feeding.

They thrive in a tank with a temperature range of 28-30 degrees Fahrenheit and a pH range of 6.5-7.5.Bloodfin tetras require a ph neutral water with a high quality aquarium fish food that contains proteins, vitamins, and minerals to meet their dietary requirements.

If these conditions are met, bloodfin tetras can live up to 10 or more years in captivity. To ensure optimal water conditions and provide them with the best food, it is a good idea to regularly test the water parameters and replace any aquatic plants that begin to die or show signs of decay.

Food & Diet

Bloodfin tetras are an omnivorous species that are commonly kept in aquariums. They feed on a variety of foods, including both plants and animals. Bloodfin tetras should be fed a balanced diet consisting of live, frozen, freeze-dried, and prepared food to ensure optimal health.

They should be offered a variety of vegetables, such as spinach, lettuce, and other greens, as well as high-quality flake and pellet diets. They also enjoy a mixture of plant-based food, such as blobs or pellets, as well as fish or other meats. These fish can be fed small pieces of fruit or vegetables to supplement their diet.

In the aquarium, bloodfin tetras need a tank with a temperature around 24–26 °C (75–79 °F) and an average water hardness of around pH 6.0–7.5. They can be aggressive fish and require careful supervision when they are young to ensure they do not injure themselves or researcher.

Behavior & Temperament

Bloodfin tetras are a species of freshwater fish that are active swimmers and occupy the upper half of the tank. They are peaceful and get along with other peaceful fish species, but may show signs of aggression at times.

Bigger Bloodfin tetras may nip at others during feeding times and bloodfin tetras will often spawn spontaneously without any coaxing from the aquarist. These fish can be a great addition to an aquarium, especially if they are kept in a community with other peaceful fish species.

However, they must be kept in a tank that is large enough to allow them to swim freely and reproduce naturally. They will thrive in an aquarium with plenty of live vegetation, as well as water quality and temperature that closely resemble those found in their natural habitat.

Bloodfin tetras usually spawn within a few weeks of being placed into the aquarium, so it is important not to over-stocking or under-stocking. They are a hardy species that can tolerate low water temperatures, so long-term storage at lower temperatures is not required.

However, care must be taken when handling these fish due to their fragile fins and ability to inflict a sharp bite if mishandled.


Bloodfin tetras are a prolific species with a minimum population doubling time under 15 months in the wild. They are easy to breed in captivity, and male Bloodfin tetras feature a small hook on the anal fin that makes them look like a miniature version of an angelfish.

Female bloodfin tetras are characterized by an orange coloration and typically smaller scales than their male counterparts. Eggs are released among broad-leaved plants or over aquarium glass and one female can produce between 300 and 500 eggs during each spawning.

Egg shattering species that do not engage in parental care, so they will not hesitate to eat their own offspring. These finny fish can reach up to 2 inches in length, making them a popular choice for community tanks. They have a typical lifespan of 5 to 7 years, making them a good choice for long-term fishkeeping.

Bloodfin Tetra Care

Bloodfin tetras, also known as True bloodfin, Redfin tetra, glass bloodfin or redfin tetra, are a popular freshwater fish. They are easy to care for and quite hardy, making them an ideal choice for beginners.

These fish have silver bodies with a greenish tone and red fins, typically reaching 2 inches in length with a lifespan of 5-7 years. They are omnivorous and should be fed a variety of foods such as flakes, pellets, frozen and live food.

Bloodfin tetras are peaceful freshwater fish that can be kept in a tank of at least 10 gallons with a temperature of 72-78°F and a pH of 6.5-7.5. They are suitable for aquariums ranging from freshwater tropical environments to freshwater temperate environments.

Tank Size

Bloodfin tetras require a tank with a minimum size of around 20 gallons for a school of 5 to 7 fish. A 20 gallon tank is the ideal size for these fish as they require an ample amount of swimming space. A tank between 12 and 20 gallons would be a good starter size and a nano tank of 38 liters is typically sufficient for bloodfin tetras.

However, it’s important to provide them with more swimming room so they can swim around freely. These fish are peaceful community fish that can be kept in aquariums with other species, but they prefer a temperature range of 72 to 81 degrees Fahrenheit and a pH range of 6.5 to 8.0.

Setting Up Their Tank

Bloodfin tetras require a tank size of atou bloodfin tetra school of fish. The tank must be large enough to accommodate a small community of 5-7 fish. The tank should feature a dark substrate, floating plants, and a backdrop of dense plants for the tetras to swim among.

Bloodfin tetras enjoy an aquarium temperature range of 72°F to 78°F (26°C to 26°C). They prefer an acidic water pH of 4 to 6 and a water hardness of 20-40 dH. These parameters can be met by adding aquarium salt and a aquarium water conditioner.

Bloodfin tetras often spawn without encouragement from the aquarist, so it’s important to monitor their behavior closely to prevent them from eating their own eggs.

Bloodfin Tetra Tank Mates

Bloodfin tetra are a peaceful freshwater fish that can be kept in a variety of aquarium setups. They are compatible with a wide range of tank mates, including smaller peaceful fish species.

In a community aquarium, bloodfin tetra should be kept with other small and peaceful fish to ensure a harmonious ecosystem.

They are an ideal species for beginners who want to keep a community aquarium at a lower risk of conflict. These fish prefer to live in small schools of six or more, so it is important to have enough space in the aquarium for them to thrive.

Bloodfin tetra are omnivores and will eat their own eggs in the wild, so tank mates should be chosen carefully to avoid potential conflict. These fish thrive in aquariums with temperature between 22 and 27°C (72 and 81°F) and pH levels between 6 and 8.

They require steady water currents as well as plenty of hiding places, making them an ideal species for community aquariums. However, bloodfin tetra food must be provided regularly in order for them to stay healthy and be able to reproduce successfully in captivity.

Water Parameters for Bloodfin Tetra

Bloodfin tetra fish prefer water with a pH range of 6 to 8 and a dGH of 2 to 30. They prefer water temperature between 18 and 28°C (64.5 and 82.5°F), with a range of 72°F to 78°F (22°C to 25°C). These fish need water with a hardness level between 4 and 20 PPM, a range of 5.5 to 7 PPH, and a temperature between 72°F and 78°F (22°C and 25°C).

It is important to provide bloodfin tetra fish with an ideal water quality to ensure their survival and growth. If conditions are not optimal, bloodfin tetra fish may experience reduced growth, poor coloration, and shorter lifespans. To ensure success in your aquarium, ensure that the water parameters are stable and within an acceptable range.

bloodfin tetra

Frequently Asked Questions

What are the different color phases of bloodfin tetras?

The different color phases of bloodfin tetras come from its red fins. In normal light, bloodfin tetras have a silver body with a greenish hue that can appear purple in the right aquarium lighting. However, when stressed or scared, bloodfin tetras can change color to a pale pink. This happens because the red fins absorb infrared energy and act as a natural filter. Adult males of the species are slightly smaller and lighter than females.

How do bloodfin tetras interact with other fish in a community aquarium?

Bloodfin tetras are social fish that are more comfortable moving in groups. When they are in a tank with other fish, they may display signs of aggression, like chasing weaker fish and nipping at them. They can interact well with other fish species in a community aquarium, but may become aggressive if the tank is overcrowded.

How do bloodfin tetras eat?

Bloodfin are omnivorous fish that eat both plant-based and meat-based foods. They should be fed a variety of foods such as frozen or live food, flakes, and pellets.

Bloodfin should be fed two or three times a day, but only as much as they can eat in two minutes. Feeding Bloodfin Tetras too much can lead to water pollution and cause health problems. Bloodfin tetras are surface feeders and much of their diet should be made up of small foods such as brine shrimp, mosquito larvae, and daphnia.

What is the lifespan of a bloodfin tetra?

The typical lifespan of a tetra is approximately 5-8 years in captivity. With proper care, a tetra can live much longer in the home aquarium, up to 10 years or more.

Make sure to provide a well-maintained habitat with a high-quality diet and water conditions that are stable. Poor water conditions and diseases can significantly reduce the lifespan of a bloodfin tetra.

Are Congo Tetras Compatible with Bloodfin Tetras in an Aquarium?

Are Congo Tetras compatible with Bloodfin Tetras in an aquarium? Yes, they are. The beauty of congo tetra for aquariums is enhanced when paired with Bloodfin Tetras. The vibrant colors and graceful movements of these fish create a stunning visual display, making them a perfect choice for aquarists looking to add a touch of elegance to their tanks.


The tetra is a peaceful fish that does well in community aquariums. It has a peaceful nature and can get along with other fish species. Some tank mates that work well with tetras include neon tetras, dwarf cichlids, gouramis, and catfish.

Bloodfin tetras can be kept with tank mates of similar temperament and size in a tank setting. They require a water temperature of 24–28°C (75–82°F) with a pH of 7–8. Bloodfin tetras are omnivores that feed on flake food, pellets, and vegetation.

They can be trained to accept food offered to them by hand. A school of tetras looks stunning in an aquarium, as they display synchronized fin movements during feeding time!

Hi, I'm Millie a passionate fish enthusiast and blogger. I loves learning about all kinds of aquatic creatures, from tropical fish to stingrays.

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