DescriptionThis aquarium breeding incubation container is well-made of high-class and sturdy materials, very durable and safe. Simple design and good process with exquisite detail makes them more practical. Good fish tank or aquarium fish fry hatching container.Features-Color: Transparent. -Material: High borosilicate glass. -Size: About 9.00X4.50X2.00cm/ 3.54X1.77X0.79inch. -These fish hatch boxes are easily attached to your aquarium by suction cup. -Transparent design, you can watch the female fish giving birth without any barriers. -They will increase the survival rate of small fish by separating the aggressive fish and weak fish. -With exquisite detail make them practical, easy to install and use, very durable. -Fish eggs will drop to the bottom of the room, no attack from other fishes, which improves survival rates of newborn fishes.