Aquarium Decor The bottom of the aquarium is covered with a layer of multicolour pebbles. Decorate the aquarium more brightly and beautifully. The small multicolour Onyx has not been artificially dyed, and is the original color of the stone. The perfect size is more suitable for decorating fish tanks Home Decor Perfect for home decor projects: succulents, potted cactus, shop decoration, terrariums, fountains, vases, floral arrangements, display canisters, pillar candle in hurricane glass, bamboo plants, aquariums, rock gardens and much more