Fish egg incubator made of non-toxic plastic material, incubator for raising fish eggs. Soft suction tube clamp, easy to install, not easy to scratch. p> To hatch fish eggs, you must use the same aquarium water so that the fish eggs adapt to the environment. Allows you to hatch the eggs in the same tank where the fish breed to provide equal water conditions during the incubation period. The purpose of an egg cup is to allow fresh water to flow over cichlid eggs that have been separated from the parents, allowing a supply of fresh water for the eggs into to develop in an oxygen-rich environment.