Saim Aqua Nursery Automatic Circulating Hatchery Aquarium It is a completely automatic system, creates a constant circulation in both the maternity and the nursery section Gently separates mother fish from fry, will not be harmful to them A clever, natural way to breed; a slow-flowing tube softly assist breeding Eliminates stagnant water; keeps the mother and babies alive Adjustbale hangers and removable top covers make the process more convenient