For the above purpose, the invention provides a partition for a aquarium, wherein the aquarium comprises a holding space, a partition body and at least two fasteners. The partition body is arranged in the aquarium and contains holes. At least two fasteners are used to buckle the two sides of the partition body on the inner wall of the aquarium to separate the holding space into a plurality of areas, which can be used to create different landscapes and raise different animals. Aquatic organisms can enter another area through holes from one area.基於上述目的，本創作係提供一種用於水族箱之隔板，其水族箱包含一容置空間，隔板包含隔板本體以及至少二扣件。隔板本體設於水族箱內，且包含孔洞。至少二扣件用以將隔板本體之兩側邊扣於水族箱的內壁上，以分隔容置空間成複數個區域，這些區域可供營造出不同的景觀以及飼養不同的動物。水族生物可從一區域經由孔洞進入另一區域。
