Colombian tetra

Aquarium fish: Colombian tetra (Hyphessobrycon columbianus)
Size: 5 – 6.5 cm
Origin: South America
Water temperature: 20-28 ° C
Aquarium volume: 112 l

Colombian tetra (Hyphessobrycon columbianus ) – a spectacularly colored aquarium fish from the tetras family, relatively recently introduced to the aquarium hobby. Originally misidentified as Hyphessobrycon ecuadorensis .

Occurrence

Gatunek endemiczny, występuje jedynie w Rio Acandi w Choco w północnej Kolumbii, blisko granicy z Panamą. Zasiedla wolno płynące strumienie i dopływy.

Charakterystyka i usposobienie

Dorasta do ok.

7 cm długości całkowitej. Ciało wysokie, bocznie spłaszczone, w górnej części zabarwione opalizującym błękitem. Płetwy ogonowa i odbytowe mają jasny krwistoczerwony kolor, nieco mniej czerwieni jest na płetwach grzbietowej i piersiowych. Płetwy brzuszne przezroczyste do jasno pomarańczowego. Płetwa odbytowa zwykle obrzeżona czarną obwódką, a grzbietowa i odbytowa mają białe koniuszki.

Dojrzałe płciowo samce, są nieco mniejsze, smuklejsze, intensywniej ubarwione i mają bardziej wydłużoną płetwę grzbietową. The Columbian Swarms are active and rather peaceful fish, but in smaller numbers and in too small a space they can catch other smaller species . It is recommended to keep min. 8 pcs, preferably more. They look prettier and show more interesting behavior in larger numbers.

They swim in the middle of the aquarium and stick tightly to the shoal.

Nutrition and feeding

Omnivorous, in the wild it feeds mainly on worms, insects and other zooplankton, and also in smaller amounts on plant and organic matter. Feeding in the aquarium is not a problem. On a daily basis, they can be given dry foods in flakes and granules, regularly supplemented with live and frozen foods (bloodworm, daphnia, artemia) and plant food.

Aquarium

A small group requires an aquarium of at least 90 cm in length, locally densely planted with plenty of space for swimming and a dark substrate.

For decoration, you can use dry pieces of wood, roots, branches or leaves. They do not like too bright lighting, which is best muffled with floating plants. In a social aquarium they can probably be kept with tetras of similar size, smaller cuirass or armor, and medium-sized calm cichlids.

Breeding

The species spreads its eggs among plants and shows no parental care. In a well-kept and maintained tank, they can wear out without the intervention of the aquarist.

To obtain more fry, a more controlled approach and setting up an additional breeding aquarium is required. In it, you should place clumps of small-leaved plants or alternatively aquarium mops. We put a net, artificial grass or glass balls on the bottom. The mesh should have fine meshes so that only eggs can pass through them. Water for breeding should be moderately acidic and soft (pH 5.0-6.5) with a temperature of 24-26 ° C.

A mature, small sponge filter is sufficient for filtration. Oxygenation with an additional air stone will also be beneficial. Before the planned spawning, we feed the fish more often with live and frozen food. If the females are clearly thicker and the males more intensely colored, it means that they are ready for spawning. We choose the thickest female and the most beautiful male and transfer them to the previously prepared aquarium in the evening.

Spawning usually takes place the next morning and takes 2 to 4 hours. As soon as we spot roe, parents must be separated as they tend to eat it. An adult female can lay up to 2,000 eggs. Hatching takes 24-36 hours. As soon as the larvae have used up their yolk sac, start feeding with the smallest foods, then micro nematodes and brine shrimp larvae can be introduced.

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