These are very popular fish and rather expensive. Living for only a year, most people who do invest in them do so to breed. Egg care is one of the reasons why they are so expensive. They are native to African waters which dry up and so do the eggs until the next rains fall. Then they hatch. Egg maintenance for captive breeding calls for the eggs to be removed from the tank and stored in a plastic bag for a certain amount of time before being returned to water. Definitely read up on them before getting involved.