Kopella Arnold, or kopein, or "splashing tetra", or "jumping haracin." Here is what a large number of names this interesting fish has. And what’s interesting about her, we’ll talk about this.
Appearance of copellas
Females are smaller than males. In males, the anal, tail and back fins are elongated, and the color is brighter. The dimensions of the females are approximately 6 centimeters, and the males reach a length of 8 centimeters. The color of copellas is not catchy and not too bright. But these fish have a pleasant appearance, in addition, they have very interesting behavior, which is why they have become so popular.
Life Features of Squirting Tetra
The homeland of these fish are streams and rivers of Guyana. They prefer areas with dense vegetation and a small course, because in these places you can find food not only in the water, but also above the water.Copella Arnold (Copella arnoldi).
Copella feed on small crustaceans, adult insects and larvae. At the same time, they eat not only insects that fall into the water, but also swirl above the water and even sit on plants.
Spraying tetras are predators, but they are also attacked by larger fish, and there are a lot of them in the Guyana rivers. And if adults have a chance of salvation, then in eggs and larvae they are limited. In nature, there are different ways to preserve a species. And at Arnold's copellas they are very original: the fish lay their eggs on land, or rather, on the leaves of plants located above the water. In the aquarium, they can spawn on the filter cover, glass, heater, and the like.
Breeding hopping haracinCopella fish get along well in the aquarium.
In nature, spawning is stimulated by rains. And in the aquarium, they replace the aquarium water with 10-20% fresh water. In addition, they raise the temperature by a couple of degrees and begin to intensively feed the fish with live and dry food.
The male selects a suitable sheet for masonry, makes several jumps and makes sure that he made the right choice. When a leaf is selected, he invites a partner, moreover, females are already watching his jumps.Arnold copellas are called jumping fish.
If several females agree to spawn at once, then the male is glad to offer his services to everyone. But at the same time, males do not tolerate competitors. If only the intruder appears in the field of vision, the male abandons all affairs and chases him away. Of course, copelas are not as aggressive as cichlids; during fights, scales do not fly in all directions and there are no serious injuries.
The pair begins to circle under the leaf, while their bodies cross. Then they become side by side and are located almost vertically, like rockets at the start. The fish bends in the form of the letter "S" and flies out of the water. Leaping haracin can fly a few centimeters. During the flight, the fish turn upside down and stick to the sheet. The female manages to lay about 5-12 eggs, the diameter of which is 1 millimeter, then she falls into the water, and the male remains on the leaf for some time and inseminates the eggs. They make such pirouettes for several hours.This type of fish belongs to the lebiasin family.
The fertility of one female can be 150-200 eggs, but, as a rule, they are fewer. Each new jump is more difficult to do, because you need to get to a place where there are no eggs yet. Often the fish make single jumps. Perhaps they do not always succeed in pair jumps, but perhaps the male moistens the substrate and inseminates the eggs again.
In one place, there may be a large number of eggs from different parents and different ages.
After spawning, the females swim away about their business, continue to eat further and look for new gentlemen. And the males remain to monitor the masonry. Without moisture, the eggs will dry quickly, which is why unborn fry need a father. Eggs dry without water even in humid air, and if they are in the sun, then this will generally happen faster than in an hour.Feeding the fish.
Eggs develop over 2 days, and then another 3-4 days, the larvae hang on leaves on special threads. Larvae are very thin and almost colorless, with huge eyes. All this time, the male swims at the surface of the water, bends and hits the water with fins. That is why males need such jewelry, because females with shorter fins also know how to jump well. Spray falls on the eggs, supplies them with moisture and oxygen, and the larvae are washed off into the water. Kids falling into the water are immediately able to swim, eat and find shelter.
Growing eggs in a separate aquarium
What happens to the eggs, which failed to stay on the leaf, and they fell into the water? Is he dying? No, caviar can also develop in water. At the same time, many aquarists are sure that it is best to carefully cut the eggs with a blade and place them in a separate small container with aeration.
Water in such a container should be soft at about 10 °, and a temperature of about 24-26 degrees under such conditions. The development of caviar will take 36-48 hours. If the water is cooler or warmer, the eggs will die.
Copell conditionsCopellas are peace-loving fish.
For breeding Arnold copellas, the volume of the aquarium should be 50-100 liters. Its length should not be less than 50-70 centimeters. The aquarium must be covered with glass, while there should not be any gaps. Between glass and water there should be an air space of 3-6 centimeters.
Spraying tetras can be kept together with any small peaceful fish. But if the goal is to breed fish, it is better to keep the flock separately.
Must be plants. To fish laid eggs, you can use the leaves of a variety of non-toxic domestic plants that are attached with suction cups, you can even use plastic leaves. About 30% of the water is changed once a week. Water hardness should be between 6-10 °. When kept, the water temperature should be 20-26 degrees, and when diluted - 24-26 degrees. Kopell is worn by cyclops, bloodworms, and Drosophila. Larvae are given rotifers, microworms and ciliates.