To provide an attachment enabling accessory equipment such as a blower to be precisely attached to an aquarium having an edge frame.
The attachment has an attachment body 2 having a downward channel-shaped fitting part 20, and a spacer member 3 freely attachable and detachable to and from a groove of the fitting part 20. The attachment body 2 is constituted so that an attaching form selected from two attaching forms of the first attaching form regulated so that the attachment body 2 may be attached by fitting the channel-shaped groove 21 on the outside of the edge frame 6, and the second attaching form regulated so that the attachment body 2 may be attached by fitting the channel-shaped groove 21 through the spacer member 3 on the outside of the edge frame 7. The attachment 1 is constituted so as to be engaged with one of both the side parts and the upper part of the edge frames 6 and 7 even in any attaching form of the first and the second.
Ken Takada
Yoshihito Shimizu