Rio Areoes Eartheater (Geophagus sp. 'Rio Areoes')
| Rio Areoes Eartheater Geophagus sp. 'Rio Areoes' | |
|---|---|
 | |
| Name | Rio Areoes Eartheater |
| Name Lat. | Geophagus sp. 'Rio Areoes' |
| Synonym | Geophagus neambi |
| Family | Cichlids |
| Family lat. | Cichlidae |
| Order | Cichlids |
| Order lat. | Cichliformes |
| Origin | South America |
| Habitat | Rivers |
| Diet | Omnivore |
| pH | 6.5-7.5 |
| Behavior | Peaceful |
| Keeping | Pair, group |
| Care Level | Difficult |
| Reproduction | Mouthbrooder |
| Breeding | Moderately difficult |
| Life Span | 8-12 years |
| Protection | No |
| Metric Units | |
| Size | 15-20 cm |
| Temperature | 25-30 °C |
| Hardness | 1-10 °dH |
| Aquarium | 300 l |
| US Units | |
| Size | 6"-8" |
| Temperature | 77-86 °F |
| Hardness | 18-178 ppm |
| Aquarium | 80 gal |
Distribution and habitat
The range of the Rio Areoes terrestrial eater is the Rio Areòes, in the Rio Araguaia river system in Mato Grosso, Brazil. They live there in the sandy zones rich in plants, in stagnant or flowing water, interrupted by areas of boulders and rocks.
Maintenance
The aquarium should have a robust border planting, with some round river stones and roots as hiding places, and plenty of free sandy areas suitable for burrowing. A soft, deep substrate covered with some foliage (e.g. sea almond tree, oak), subdued light (floating plants) and soft, slightly acidic water with a weak current is ideal.
No ammonia, ammonium and nitrite should be detectable in the water, and 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
The food supply consists of live, frozen and dry food. For a balanced diet, feed once daily with a high-quality sinking dry food (granules, pellets, tablets) as well as tubifex, artemia, mysis, mosquito larvae or shrimp (live or frozen). In addition, they need regular vegetable food, such as blanched leafy and wild vegetables, algae leaves or dry food with vegetable ingredients (e.g. spirulina). It is recommended to feed small portions several times a day. Only feed as much as will be eaten within a few minutes. A regular and varied diet promotes health.
Behaviour and compatibility
They should be kept in pairs or better in a group of 5-8 animals. In too small groups the intra-species aggressiveness increases. They are only territorial during the spawning season. Keeping a larger group is only recommended in a larger and richly structured tank. They are compatible with other fish and can be socialized well with calmer, warmth-demanding fish. Basically, only compatible fish species with similar demands on water quality and water temperature may be socialized.
Sex dimorphism
The adult male is larger and has distinctly longer, pointed fins and a pointed genital papilla, which is round in the female. It is difficult to determine the sex of juveniles.
Reproduction and breeding
They are ovophilous mouth brooders. The female usually spawns on a flat, well-cleaned rock or similar. After the male fertilizes the eggs, the female immediately takes them into her spacious gullet (pharynx) for mouthbrooding. Once the larvae hatch, the parents take turns in mouthbrood care. After 8-11 days, the young are released from the mouth. Only overnight, or when danger threatens, do the fry escape back into the parents' mouths. The fry continue to be cared for by the parents for several weeks before brood care ends. Fry must be fed several times a day with special rearing food (Artemia nauplii). In community tanks breeding is hardly possible, because the fry are easy prey.
Important
They rummage through the substrate in search of food. According to this species-typical behavior, they are also called soil eaters. Plants are not eaten, but should be placed in pots and secured with stones against digging out. The foliage (sea almond tree, oak etc.) enriches the water with humic substances and lowers the pH value in a natural way.
The well-being of the fish should be checked regularly. Temperature should be checked daily, pH, hardness and nitrate levels should be checked at least every 14 days. Regular partial water changes are recommended, even if the contaminant level 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: Franz Lowak
Source: BMELV (1998): Tierschutzgutachten - Haltung von Zierfischen (Süßwasser); BAENSCH & RIEHL (1997): Aquarien Atlas Bd. 5, Mergus Verlag; ENGELMANN (2005): Zootierhaltung - Tiere in menschlicher Obhut: Fische, Verlag Harri Deutsch
- Gemäß § 21 Abs. 5 Tierschutzgesetz idgF