Color:Square Color:Green Divided into two spaces, it is easy to install and use and keep the top of the net above the water level. of. It is important to isolate pregnant fish so that they can be produced separately from the community trout. After birth, the fish can be returned to the community water tank so that the juvenile fish grows large enough in this fish net feeder. Isolation of injured or aggressive fish. It consists of a mesh and a plastic frame. The attached suction cup can be easily attached to the top of the aquarium.