| 摘要 |
PURPOSE: A bottom filtering hole for an aquarium is provided to effectively prevent disturbance and entrance of fishes. CONSTITUTION: A bottom filtering hole for an aquarium is formed in a cylindrical form having a bottom. The bottom filtering hole comprises: a hole body(10) having a water hole; a support member(20) of net form, which is mounted on the bottom of the hole body; and a filtering material(30) which is supported by the support member and bottom of the hole body. The filtering material is formed in a porous sponge. |
