The entire net is closed so fish wont escape near the surface of the aquarium glass.
This product is aquarium fish supplies. Do not use for any other purpose. Not for use with fins or fish with sharp faces. Although it is characterized by bending, excessive force may cause deformation or breakage. Please note: If you press the clamp can firmly against the aquarium, it may damage the resin parts such as the acrylic surface and frame. Please note: Keep out of reach of infants