Corynopoma (Corynoporna riisei), also called the dragon fish, has long become a familiar pet among aquarists. The male reaches a length of 65 mm, and the female - 50 mm. Crynopomas have a flat elongated body shape. The color of the fish is light, silver-gray, while the fin color is slightly greenish-purple.
Anal, dorsal and caudal fins in dragons are elongated, with the ends of the rays protruding (males are especially prominent). Males have modified gill covers ending with long spoon-like outgrowths, while the ends have a bright golden sheen. The fish have a thin black strip that runs along the body from head to tail.
In nature, the corynopoma feeds on insects that have fallen to the surface of the water. The dragon abruptly catches an insect on the water and also quickly returns. The fish drowned by an insect is uninteresting - it is difficult for it to pick it up from the bottom. Corinop should be fed with live or frozen food: daphnia, cyclops, bloodworm. Dry food of corinopomes is poorly eaten. Dragons are also prone to overeating.
Maintenance and care
Corinopomas are very mobile. They require transparent water, light and air for maintenance. The water in the aquarium should be in the temperature range of 23-26 ° C, while the pH value should not deviate much from seven, that is, from a neutral environment. To hook other fish to them that have not been quarantined is risky, since corinopomes are prone to ichthyophthyroidism.
The process of spawning with corinop is very interesting for aquarists. Dragons reach puberty at eight months. Fertilization by the male of the female occurs a certain time before laying eggs. When the male attracts the attention of the female, he performs a “dance”, for which the fish became known as the dragon. The male’s actions are intensive swimming around the female, accompanied by the trembling of the spoon-like endings of the gill covers, which he strongly spreads. When the fish are still in the general aquarium, the male transfers the milk to spermatophores (sacs). Then, using club-shaped outgrowths, she calls the female, after which she attaches spermatophores next to the female's anus. Further, the female needs to be moved to spawning, the volume of which should be 10-25 liters, the soil should be absent, while the presence of large-leaved plants (ludvigia, floating ceratopteris) is necessary. If you do not transplant the females, then they will lay eggs in the general aquarium, and this will lead to the eating of eggs by other cinnopomes and their neighbors. At domestic aquarists, dragon fish usually begin to spawn in March, and finish in August. What properties should water have? It should be fresh, settled tap water, with a hardness of 6-8 °, a pH value of 6.5-7.0, and a temperature of 24-28 ° C. One or two females in spawning should be well lit by natural or artificial lighting. A female in spawning can lay eggs on the next day, or in a day or two, which depends on the maturity of the individual. Female dragons paste eggs (transparent) on the undersides of the leaves. When spawning is complete, it is advisable to return the females to a common aquarium. The incubation period will take 20-36 hours. The hatched larvae will hang for the first few days, joining the surfaces of plants and the walls of the aquarium. After two or three days, the fry begin to swim and consume food. As a starting feed, infusoria, nematodes (micro-feed), live dust, and egg powder should be given. While the fry grow, a gradual enlargement of the feed is required. After a couple of months, the grown fry can be transferred to a common aquarium.