Natural River Gravel for Fish Aquariums & Pets - Tan - 15 lb General This 100-pound setup features a

This 100-pound setup features a centerpiece with ample passageways and a petrified wood chunk for added contrast

The right half of this is one big rock

If you measure the centerpiece the way it sits in the photo

16" Wide x 12" High

Natural River Gravel for Fish Aquariums & Pets - Tan - 15 lb General This 100-pound setup features aRiver gravel is one of the most popular choices for aquarium substrate. Being natural, from nature, eliminates the risk of toxins manufactured stones often contain. It is useful for promoting the growth of beneficial bacteria, and if you have a planted tank, it works well to anchor them to the floor. This gravel has been screened and cleaned for your convenience. You will receive 15 pounds of natural river gravel in a mix of tan, brown, and white