This profile was written by Ashraf an active contributor to the site.


Img cddae



Img d f adb



Hyphessobrycon sweglesi



    One of the smaller tetra species, they are vividly colored and, like most tetras, look superb in a proper school of at least 12 individuals.

Quick stats:

Listed tank sizes are the minimum
Size: 1.5 – 2 inches (3.8-5cm)
Tank: 20 gallon long for a proper school
Strata: Will go everywhere but predominantly Lower to Middle level.
PH: 5.5 – 7.5
Hardness: Soft to medium: dh range 4.0 – 20.0
Temperature: 72°F to 77°F (22°-25° C)


Order: Characiformes
Family: Characidae
Genera: Hyphessobrycon
Species: Sweglesi

Common name:


Red Phantom TetraDistribution

    South America: Columbia; Rio Orinoco Basin.

General Body Form:

    Similar to that of the other hyphessobrycons, with lateral compression and a somewhat diamond shaped body.

Sexing & Coloration:

    An overall red sheen on the head and body with a blotch of black just around the stomach area of the fish. The fins and tail are also orange colored with outlines of black.


    A much more peaceful and beautiful alternative to its similarly looking cousin, the serpae tetra, the red phantom prefers to be in schools. In the wild, groupings consist of hundreds to thousands of them. In most home aquaria such a feat has no hope of being achieved, but a minimum of 12 specimens will keep them relaxed and lively. Tank should be well planted or contain lots of wood to give the fish a sense of security.



Img d f c


Img d f b



    In the wild these will eat small crustaceans, worms and daphnia. In the aquarium they will eat most anything offered to them. Such as, Daphnia, freeze dried blood worms, Brine shrimp as well as flakes and granules.


    Quite easily bred, although you’ll need to set up a separate tank in which to do so if you want to raise any numbers of fry. Something around 18″ x 10″ x 10″ in size is fine. This should be very dimly lit and contain clumps of fine-leaved plants such as Java moss , to give the fish somewhere to deposit their eggs. Alternatively, you could cover the base of the tank with some kind of mesh. This should be of a large enough grade so that the eggs can fall through it, but small enough so that the adults cannot reach them. The water should be soft and acidic in the range pH 5.5-6.5, gH 1-5, with a temperature of around 75-80°F. Filtering the water through peat is useful, as is the use of RO water. A small air-powered sponge filter bubbling away very gently is all that is needed in terms of filtration. It can be spawned in a group, with half a dozen specimens of each sex being a good number. Condition these with plenty of small live foods and spawning should not present too many problems. In either situation, the adults will eat the eggs given the chance and should be removed as soon as eggs are noticed. These will hatch in 24-36 hours, with the fry becoming free swimming a 3-4 days later. They should be fed on an infusoria-type food for the first few days, until they are large enough to accept microworm or brine shrimp naupili. The eggs and fry are light sensitive in the early stages of life and the tank should be kept in total darkness, something easily achieved by covering your grow out tank with black bin bags.


    A biotope setup would be simple to arrange. Use a substrate of fine sand and add a few driftwood branches (if you can’t find driftwood of the desired shape, common beech is safe to use if dried and stripped of bark) and twisted roots. A few handfuls of dried leaves (again beech can be used, or oak leaves are also suitable) would complete the natural feel. Aquatic plants are not a feature of this species’ natural waters. Allow the wood and leaves to stain the water the color of weak tea, removing old leaves and replacing them every few weeks so they don’t rot. A small net bag filled with aquarium-safe peat can be added to the filter to aid in the simulation of black water conditions. Use dim lighting.


5/5 - (19 votes)


Please enter your comment!
Please enter your name here