Safely seperates new born fry from mother and other fish or isolates injured or aggressive fish. New frame style with removable, locking legs Insert 4 columns to 4 corners of to jack up the frame and put the net from the top to the bottom to sheathe the frame adjust the position of the net breeder to make sure the water level is not above the top frame.Bottom separator with small slots can prevent the new born fry, shrimp to escape. Removable divider for different needs. Especially for aggressive fish or injured fish.It is a Hatchery for viviparous fish, such as bettas, guppies, medaka, ect. It can Prevent attack from adult fish, improve the survival rate of juvenile fish.All you need to do is simply add your own decor to the inside, along with your own selection of fish, and enjoy the beautiful design of this mini aquarium that has visibility from all angles.