To provide filtration moldings for aquarium fishes, preventing falling out of ion exchange resin powders supported on a support, and enabling recovery and reuse by preventing deformation of the support.

There is provided a filtration molding 10 comprising a support 12 comprising a fiber material, ion exchange powders 14 supported on the support 12, and a covering layer 16 covering the surface of the support 12, is provided, wherein, the ratio of the surface area of the covering layer 16 to the total surface area of the support 12 is preferably in a range of 40-95%. The fineness of the fiber material of the support 12 is preferably in a range of 2-5 dtex on average. Further, the support 12 is preferably mat-like. Moreover, a surface protective layer comprising a fiber material is preferably equipped.