Make sure this fits by entering your model number. Natural Polished Pebbles:This river rocks are natural lightly polished for smooth effect, comes in a variety of natural colors, Resists fading for long-lasting beauty. The color of this river rock is natural so it may include a variety of different shades of browns, black and whites rocks.(rocks are natural and as a result some may be broken or out of shape, thick or thin, oval or round) - Vase Fillers Many Uses: Use for flower arrangements, vase fillers, walkways, water features, exposed aggregate flooring or walls, swimming pool areas and many other areas. It could also be used as an accent to aquariums , water gardens, ponds, and terrariums.Natural Stones，river rocks，fish tank gravel，aquarium gravel，succulent soil, potting soil,succulent soil mix,cactus soil,potting soil for indoor plants. - Aquarium Gravel