Flame Tetra
Von Rio Tetra, Fire Tetra, Red Tetra
Family: Characidae
Hyphessobrycon flammeusPhoto © Animal-World Courtesy: David BroughThe Flame Tetra, as its name suggests, has a very beautiful fiery red coloring when it's happy!
The Flame Tetra Hyphessobrycon flammeus demonstrate a gorgeous fiery coloring when they are comfortable and happy in their aquarium. This tetra is generally silver in the front but becomes a fiery red on the back. It is especially bright red at the base of the fins.
When these fish are exposed to a lot of disturbances they become very timid and their coloring will pale. They don't always show real well in pet store aquariums because they are exposed to a lot of activity. They otherwise vibrant coloring look pales in that setting. In fact they will closely resemble the Black Tetra Gymnocorymbus ternetzi when seen in a pet store. Consequently the Flame Tetras are not one of the most sought out tetra species. An aquarist must know what they are looking for to experience this rewarding beauty. Some other common names this little fish is known by are Von Rio Tetra, Fire Tetra, Red Tetra, and a few variations of those.
Besides their coloring, the beauty of these little tetras is their ease of care. They are one of the hardiest little fish and are great for a new fish keeper. An added benefit is they are easily bred if they are comfortable. As a matter of fact, they are recommended for a beginner that wishes to experience fish breeding.
The best way to keep them in the home aquarium is to provide them with a pleasant environment. They are happiest in a school of 6 or more. and will also do best if kept with other smaller fish in a peaceful environment. Once the Flame Tetras are established in a calm aquarium they become very active. When they get acclimated they will no longer be timid and the aquarist is rewarded with a very happy, pretty group of fish.
For Information on keeping freshwater fish, see:
Freshwater Aquarium Guide: Aquarium Setup and Care
| ||||
- Temperament: Peaceful
- Aquarium Hardiness: Very Hardy
- Aquarist Experience Level: Beginner
- Diet Type: Omnivore
- Minimum Tank Size: 10 gal (38 L)
- Temperature: 73.0 to 82.0° F (22.8 to 27.8° C)
- Range ph: 5.5-7.5
- Hardness Range: 3 - 15 dGH
- My Aquarium - Enter your aquarium to see if this fish is compatible!
- Beginner Fish - Freshwater fish for beginners
- Community Fish - Peaceful Freshwater fish
- Hardy Fish - Hardy Freshwater fish
- Similar size fish - Fish that are 1 inch bigger or smaller
- Coldwater Fish - Looking for cold water fish? (65 °)
Habitat: Distribution / Background
The Flame Tetra Hyphessobrycon flammeus was described by Myers in 1924. This species is not listed on the IUCN Red List.They are found in South America in coastal rivers in Eastern Brazil and around Rio de Janeiro. These tetras show a preference to slow flowing creeks, river tribuaries and backwaters. Other common names they are known by are Von Rio Tetra, Fire Tetra, Red Tetra, Tetra of Rio, and Rio tetra. They swim in schools and feed on worms, small crustaceans, and plant matter.
- Scientific Name: Hyphessobrycon flammeus
- Social Grouping: Groups
- IUCN Red List: NE - Not Evaluated or not listed
The Flame Tetra is a deep bodied fish with the typical tetra shape. This fish will generally reach about about 1 1/2 inches (4 cm) in length and has a lifespan of about 3 - 5 years.
This tetra is silver in the front of its body but becomes a fiery red on the back, especially at the base of the fins. There are two black stripes that run up and down behind the gills and they have a blue eye ring. The male has a blood red anal fin. The anal fin of the female is lighter and sometimes yellow. A black tip on the pectoral fin is seen only on the female.
- Size of fish - inches: 1.6 inches (3.99 cm)
- Lifespan: 5 years - These fish have a life span of about 3 - 5 years.
The Von Rio Tetra is a hardy fish that is great for the beginner fish keeper. While this fish is very hardy, water cleanliness should be meticulously maintained as this fish is somewhat more susceptible to Ich and other infections. This is a great fish for beginners that want to learn to breed as they are fairly easy to spawn.
- Aquarium Hardiness: Very Hardy - While this fish is very hardy, water cleanliness should be meticulously maintained as this fish is somewhat more susceptible to Ich and other infections.
- Aquarist Experience Level: Beginner
Since they are omnivorous the Flame Tetra will generally eat all kinds of live fresh and flake foods. To keep a good balance give them a high quality flake food everyday. Feed brine shrimp (either live or frozen) or blood worms as a treat. The Flame Tetra should be fed multiple times a day and only what they can consume in 3 minutes or less.
- Diet Type: Omnivore
- Flake Food: Yes
- Tablet Pellet: Yes
- Live foods (fishes, shrimps, worms): Some of Diet
- Vegetable Food: Some of Diet
- Meaty Food: Some of Diet
- Feeding Frequency: Several feedings per day
Flame Tetras are not exceptionally difficult to care for provided their water is kept clean. Aquariums are closed systems and regardless on size all need some maintenance. Over time decomposing organic matter, nitrates, and phosphate build up and the water hardness increases due to evaporation. To combat these ever changing conditions water should be replaced on a regular basis, especially if the tank is densely stocked. At least 25 - 50% of the tank water should be replaced every other week.
- Water Changes: Bi-weekly
These fish are fairly hardy and a school of six will do best in an aquarium that is about 10 t0 20 gallons. They are somewhat more demanding than most Tetra and should have soft, peat-filtered water. These fish need open areas to swim freely. The aquarium should be heavily planted around the sides and back and have plenty of open water for swimming in the front. A few hiding places would also be appreciated.
Flame Tetras prefer some plant cover and a darker gravel. To get the best out of this fish, set up a biotype tank. For the substrate use a river sand with some drift wood and twisted roots. Add some dried leaves to the sand, which will stain the water a light brown and replace leaves every few weeks. Use dim lighting and it will develop the tetras best coloring.
- Minimum Tank Size: 10 gal (38 L) - A ten gallon is the smallest size that could house the small school this fish requires to be comfortable.
- Suitable for Nano Tank: Yes
- Substrate Type: Any
- Lighting Needs: Moderate - normal lighting
- Temperature: 73.0 to 82.0° F (22.8 to 27.8° C)
- Breeding Temperature: 80.0° F - These fish will spawn between 80 - 84° F
- Range ph: 5.5-7.5 - A pH of 6.5 to 7.0 is preferred.
- Hardness Range: 3 - 15 dGH - A hardness of 10° dGH is preferred.
- Brackish: No
- Water Movement: Moderate
- Water Region: All - These fish will swim in all areas of the aquarium.
![]() |
The Flame Tetra is a good peaceful fish recommended for all community aquariums. They are happiest in a school of 6 or more and do best if kept with other smaller fish in a peaceful environment. Tetras can be easily spooked into hiding so situate the tank appropriately. Best tankmates for the Flame Tetras are most livebearers, danios, rasboras, other tetras and peaceful bottom dwellers.
- Venomous: No
- Temperament: Peaceful
- Compatible with:
- Same species - conspecifics: Yes - A minimum school of 6, but more are better.
- Peaceful fish (): Safe
- Semi-Aggressive (): Threat
- Aggressive (): Threat
- Large Semi-Aggressive (): Threat
- Large Aggressive, Predatory (): Threat
- Slow Swimmers & Eaters (): Safe
- Shrimps, Crabs, Snails: Safe - not aggressive
- Plants: Safe
The male has a blood red anal fin while the females is lighter and sometimes yellow. The black tip on the pectoral fin is seen only on the female.
The Flame Tetra are egg layers. These tetras mature very quickly and reach sexual maturity in around 6 months. When they spawn they lock fins, then while clasped they perform a type of roll-over process in the vegetation. Thus the female releases about a dozen eggs at time and the male fertilizes them. Because of this spawning behavior, this is one tetra that must not have too dense a spawning vegetation.
Most successful way to spawn these fish is in groups of 12 with 6 males and 6 females. Feed this group small live foods and nature should take over and spawning will begin. It is best to set up a seperate tank for breeding to get the best number of fry. Keep the tank dimly lit with clumps of spawning mops or java moss so the female has a place to deposit the eggs. A layer of mesh also works if it is wide enough for eggs to pass and small enough to keep parents out. The water should be soft and acidic with a pH 5.5 - 6.5 with a temperature of 80 - 84° F. A small air powered sponge filter is all that is really need for filtration. Filtering the water through aquarium safe peat is a good choice.
Once a successful spawn has been achieved remove the parents. Eggs will hatch with in 24 - 36 hours with fry becoming free swimming 3 - 4 days later. For the first few days feed the fry infusoria type foods until they can feed on microworm or brine shrimp nauplii. Fry are light sensitive during the early stages and require it as dark as possible. Also see Breeding Freshwater Fish: Characins for a general description and see Fish Food for Fry for information about types of foods for raising the young.
- Ease of Breeding: Moderate - Although breeding is not particularly difficult, females are often disinterested in spawning. Additionally, the fry require extremely clean water and are not especially robust.
The Flame Tetras are hardy and disease is not usually a problem in a well maintained aquarium. That being said there is no guarantee that you won't have to deal with health problems or disease. Anything you add to your tank can bring disease to your tank. Not only other fish but plants, substrate, and decorations can harbor bacteria. Take great care and make sure to properly clean or quarantine anything that you add to an established tank so not to upset the balance.
A good thing about Flame Tetra is that due to their resilience, an outbreak of disease can often be limited to just one or a few fishes if you deal with it at an early stage. When keeping more sensitive types of fish, it is common for all fishes to be infected even before the first warning signs can be noticed. The best way to proactively prevent disease is to give your Flame Tetra the proper environment and give them a well balanced diet. The closer to their natural habitat the less stress the fish will have, making them healthier and happy. Stressed fish are more likely to acquire disease.
As with most fish the Flame Tetras are prone to skin flukes, parasitic infestations (protozoa, worms, etc.), ichthyobodo infection, parasitic infestations (protozoa, worms, etc.), bacterial infections (general), and bacterial disease. It is recommended to read up on the common tank diseases. Knowing the signs and catching and treating them early makes a huge difference. For information about freshwater fish diseases and illnesses, see Aquarium Fish Diseases and Treatments.
The Flame Tetra is readily available and inexpensive. Besides Flame Tetra, they will also be sold as the Von Rio Tetra and Fire Tetra, as well as combinations of these three names.
- Animal-World References: Freshwater Fish and Plants
- Dr. Rüdiger Riehl and Hans A. Baensch, Aquarium Atlas Vol. 1, Publisher Hans A. Baensch, 1991
- Glen S. Axelrod, Brian M. Scott, Neal Pronek, Encyclopedia Of Exotic Tropical Fishes For Freshwater Aquariums, TFH Publications, 2005
- Joseph S. Nelson, Fishes of the World, Wiley, 2006.
- Marc Ladonne, Aquarium Fish , Barnes Noble, 1999
- Dr. Herbert R. Axelrod, Aquarium Fishes of the World, TFH Publications, 19987
- Hyphessobrycon flammeus (Myers, 1924) Flame tetra, Fishbase.org
![]() |









TetraWFCh_C1250_vsm.jpg)