Bottom filtration for the bottom plate of ornamental aquarium

摘要

PURPOSE: To obtain the filtration bottom plate at the bottom part of the water tank, enabling the smooth passage of water in mutually joined parts, even when the filtration bottom plate for the bottom part is joined to other filtration bottom plates and used. ;CONSTITUTION: In the filtration bottom plate having many slits or small holes in the upper surface part and the side surface parts, weak parts are disposed in the side surface parts. The slits can be expanded by cutting off the weak parts. The slits or small holes are enlarged by cutting off the weak parts, thus enabling the increase in an area for the passage of water and consequently guarantee the smooth flow of the water.;COPYRIGHT: (C)1995,JPO