A method of ornamenting conduits, cylindrical or otherwise, as well as other tubes, filters, narrow and cylindrical surfaces which can be found in an aquarium or terrarium whereby the tubes, conduits, and cylinders are provided with attachment members on their exteriors and ornaments are provided with attachment members so that the ornaments can be placed on the exteriors of the tubes, conduits, and cylinders enabling the texture or appearance of the exterior to be changed to produce a pleasing and aesthetic effect. The conduits and other aquarium equipment with attachment members on their narrow or cylindrical surfaces, as well as the ornaments with corresponding attachment members or regions are also described.