Previously, more than 200 species of this family belonged to the family rivulaceae. Except notobranchius, most aplocheilovyh have a narrow pike-like body length from 2 to 20 cm Dorsal fin shifted back, small. The anal fin is long and the ventral fins are small. The most brightly colored species of the order belong to the family. However, this color is an advantage only for males. Females are painted pale, expressionless.
Habitats are grassy alkanovich small shallow stagnant or slowly flowing waters of tropical forests and savannas. Epiplatys and fundulopanchax often live in areas of flooding, Nothobranchius — in temporary pools which dry up for several months each year.
Successful captivity of aplocheil is based on the correct reproduction of the conditions in which the fish live in nature. Aplocheilidae live relatively short, so you can keep them at a constant dilution. That’s why fish are kept in spawning grounds almost all the time. For these purposes, suitable low aquariums, conveniently placed on the rack. The capacity of the spawning — from 5 years for small species to 40-50 l for aplocheilus and epiplatys. Aquariums must be covered with glass, because all species jump when frightened.
Fish contain small groups by species. This is done so as not to confuse females, which are very similar to each other, and to avoid unwanted hybrids. In addition, some fans equip a large General aquarium, in which you can plant the most beautiful males for a while. But still, the beauty of fish is most fully manifested in small species aquariums.
The temperature in small natural reservoirs fluctuates very strongly during the day and year. So fish can be contain without heating, if temperatures not falls below 18 °C. Fluctuations temperature, overheating upper layer water lamps lighting, harmful for many fish, on aplokheylovykh not have significant impact and are for them natural. Often account for to hear, that aplokheylovye sedentary. However, they come to life with an increase in temperature to 23-25 ° C. Natural light for aplocheylovyh is scattered overhead light and twilight. On the contrary, to consider all the richness of the color of fish can only be in strong direct light, kotoroeyih frightening. Therefore, the illuminators are installed so that the aquarium is constantly under low light, and only for the time of observation of the color include additional lamps. LB, LDC and LHB most correctly identify the color of fish. The most natural behavior and coloring of fish can be seen if the background in the aquarium and the ground are dark. In spawning grounds without soil, the bottom is painted dark brown. In the General aquarium with aplocheiloidei you can plant any plants on the surface allowed floating. In spawning grounds, it is rational to use unpretentious plants that serve as a substrate for spawning many species-Thai fern, pemphigus, nayas, Egeria, Javanese moss or blestyanka.
In nature aplocheilidae live in soft water at a pH of 5.6 to 6.7. However, in the aquarium, it is difficult to use very soft water that does not have buffer properties. Fortunately, many species are quite easy to adapt to water hardness of 8-10°. Equipped with filters a lot of small aquariums with aplocheiloidei almost impossible. Therefore, water is replaced weekly by 1/4—3/4, carefully controlling the active reaction of water, because the pH value is stronger than the hardness, affects the fish. In nature aplocheilidae eat mostly mosquitoes, ants and flies that fall into the water. In the aquarium they readily eat any kind of small animal feed — Daphnia, Cyclops, aihara, Tubifex and bloodworms. According to the method of spawning aplocheilidae are divided into two groups. One of them attach their eggs to the small-leaved plants, the other buried in silt. Fish of the first group, being in spawning, sweep daily eggs in parts, which develops about 2-3 weeks. Once a week, the substrate in the spawning ground is replaced or transplanted into a new spawning ground. No human intervention is required during embryo development. Fry gather at the surface and begin to search for food-nauplii Artemia, infusoria and rotifers. As they grow, the size of the feed increases.