Redflank Bloodfin (Aphyocharax rathbuni)
| Redflank Bloodfin Aphyocharax rathbuni | |
|---|---|
 | |
| Name | Redflank Bloodfin |
| Name Lat. | Aphyocharax rathbuni |
| Family | Characins |
| Family lat. | Characidae |
| Order | Characins |
| Order lat. | Characiformes |
| Origin | South America |
| Habitat | Streams, rivers |
| Diet | Carnivore |
| pH | 6.0-7.5 |
| Behavior | Peaceful |
| Keeping | Group |
| Care Level | Moderate |
| Reproduction | Egg scatterer |
| Breeding | Moderately difficult |
| Life Span | 3-5 years |
| Protection | No |
| Metric Units | |
| Size | 3 cm |
| Temperature | 20-26 °C |
| Hardness | 2-20 °dH |
| Aquarium | 60 cm / 54 l |
| US Units | |
| Size | 1.2" |
| Temperature | 68-79 °F |
| Hardness | 36-356 ppm |
| Aquarium | 15 gal |
Distribution and habitat
The distribution area of the Ruby Tetra is the catchment area of the Paraguay River in Paraguay. There they live in the slow flowing streams and small rivers with dense, overhanging riparian vegetation.
Maintenance
The aquarium should have a dark, sandy substrate, be structured with roots, stones and a dense border and background planting (hiding places) and provide sufficient swimming space. The light should be somewhat subdued (floating plant cover).
No ammonia, ammonium and nitrite should be detectable, the nitrate value should not exceed 100 mg/l. To ensure the water quality and oxygen content, a filter and heater adapted to the aquarium size is required, as well as lighting for the species-appropriate day-night rhythm of the animals.
Diet
In nature they feed mainly on worms, insects and small crustaceans. The food supply consists of live food (cyclops, daphnia, artemia, mosquito larvae, etc.), which is also well accepted frozen, or a commercially available frozen food mix, supplemented with high-quality dry food, such as granulated or flake food.
A regular and varied diet promotes health and increases resistance. Only feed as much as is eaten immediately (in a maximum of 10 minutes).
Behaviour and compatibility
They are peaceful and sociable fish suitable for any community tank. At least 5, but better more ruby tetras must be kept together.
Only mutually compatible fish species with similar requirements for water conditions and water temperature may be socialized.
Sex dimorphism
The males are more slender than the more plump females.
Reproduction and breeding
As free spawners they lay their eggs randomly between plants. After about 2-3 days the young hatch and swim freely after 4-5 days. The fry must be fed several times a day with special rearing food (infusoria, Artemia nauplii, dust food).
In a community tank breeding is hardly possible, because the spawn is easy prey here
Important
The well-being of the fish should be checked regularly. The temperature should be checked daily, the pH, hardness and nitrate value at least every 14 days. A regular partial water change is recommended, even if the pollutant load has not yet reached the upper limit. Sudden changes in water quality should be avoided. Newly introduced fish must be accustomed slowly to the water in the aquarium.
Further literature can be found in your pet store.
References
Text: Werner Winter; Image: Merz Zierfischgroßhandel
Source: BMELV (1998): Tierschutzgutachten - Haltung von Zierfischen (Süßwasser); BAENSCH & RIEHL (2004): Aquarien Atlas Bd. 2, Mergus Verlag; ENGELMANN (2005): Zootierhaltung - Tiere in menschlicher Obhut: Fische, Verlag Harri Deutsch
- Gemäß § 21 Abs. 5 Tierschutzgesetz idgF