The present invention includes an array of fish-shaped reflective elements, or fish decoys, which may be formed with an adhesive backing which facilitates the attachment of the reflective elements to the underside, or hull, of a vessel, such as a fishing vessel. The fish-shaped reflective elements may be configured on the hull in a pattern corresponding to the natural schooling of the prey for the fish being sought. The reflective elements may vary in size depending on the fish species being mimicked.