Coarse Silica Sand Stones for Indoor Plants Vase Filler,Succulents Cactus Bonsai Fish Tank Aquarium Garden Decorative Rocks, Horticultural Sand,River Rocks Outdoor Landscaping.(2.2 Pound)

warning if you are using this in a freshwater aquarium, this contains copper. I used this in my aquarium and copper ppm went to top of numbers. I now have to remove all of it from tank and treat.

This lava rock is magnetic!

These are rocks well as you can see dust. You would think the company would care a little more then packing like this. Pretty disappointed and will return for something else.