Video: Scalaria (Pterophyllum Scalare)
Aquarium fish are also fashionable, and among the inhabitants of domestic reservoirs there are, perhaps, not so many species that have retained the fame of some of the 143 most popular for decades. It is to them that the scalar (Pterophyllum scalare), or angel fish, as the Americans call it, can be attributed.
For the first time, the scalar was brought to Europe by 1911, but the long journey to Hamburg turned out to be fatal for the delicate fish, and instead of an aquarium, it ended up in … a jar of formalin. Failure did not stop the livestock traders, and in the same year several shipments of scalars arrived in Europe. The very next year they appeared in Russia.
To the chagrin of aquarists, it took a long time to breed fish. For the first time, fry were obtained in Europe only in the early 1920s, and in our country in 1928. And only 20 years later, the scalar began to be bred in mass quantities.
Related article Scalaria (Pterophyllum scalare)
In nature, angelfish are found in calm waters of the Amazon basin among thickets of aquatic plants and reeds. The disc-shaped body shape, elongated dorsal and anal fins, as well as elongated filamentous processes of the pelvic fins allow these shy and cautious creatures to maneuver among vegetation and hide from enemies in time. A dim, but very beautiful color helps them in this. On the silvery-shiny sides and head there are velvet-black transverse stripes, which, depending on the mood of the fish or external conditions, can fade and almost disappear. The first stripe starts from the dorsal fin and extends across the head and eyes to the beginning of the pelvic fins. The second goes from the first rays of the dorsal fin to the anus. The third, widest, runs along the dorsal and anal fins and the body,the fourth, as it were, separates the tail fin from the body of the fish. In young scalars, three more stripes are clearly visible; in adults, they, as a rule, disappear.
In the offspring of scalars, there are fish that are somewhat different in color from their parents. This was noticed by aquarists. Attention was also drawn to the fact that in closely related crossing, the fins tend to lengthen. Veil scalars were bred in the GDR in 1956, and the next year a black mutation appeared. And then, as from a cornucopia, color forms were sent marble, gold (originally called red), phantoms, bicolors (semi-black), zebras, jaguar (apple), green … Unfortunately, the lack of systematic selection work led to the fact that aquarists did not save many breeds, in particular phantoms. Far from black black scalars. True, it is possible that new color variations will appear in the near future.
A beautiful fish immediately attracts the attention of aquarists, including beginners. Many of them, having got fish for beauty, purchase ball aquariums or small containers with a volume of 20-30 liters, considering that they are less of a hassle. If you plant scalars in such a reservoir, and even feed them with dry daphnia, then most likely the fish will die, and if they survive, they will not bring joy to the fresh owner.
For scalars, you need a spacious aquarium with a height of at least 40 cm (after all, the fish are not small 15 cm long and 25 cm high) and a volume of 50-60 liters for 1-2 pairs. Fine gravel or coarse sand is suitable as a soil. Plants do not touch fish, so any will do, if only the conditions come up. You can, of course, keep the fish in a hygienic aquarium, and plant the plants in a pot. Scalars are real children of the sun, and they just need bright light. Aeration in the aquarium is required, and a filter is also desirable, since fish love clean water. Once a week, it is necessary to change 1/5 of the settled water, but its temperature should be close to that at which the fish are kept, that is, about 25-27 ° C.
In the literature, there is an assertion that the scalar can be kept at 22 ° C and even at 17-20 ° C, but I think it is better not to experiment, so that later you do not have to treat sick fish. The hardness of the water does not play a special role, in any case, they tolerate Moscow water calmly and reproduce successfully in it. Very hard, over 15 dH °, should be softened during dilution by adding distilled, melt or rain water. An active reaction (pH) is permissible in the range of 6.5-7.5.