HRB3

 This is 20 pounds of Texas Holey Rock. Great for stacking and making caves for hiding.
These are nice sized rocks for making piles for fish to swim through. All but two of these are baseball size. 

They are nice and clean. You can put them in your Fish Tank right out of the box when they arrive.

If you are looking for Limestone to use in your Aquarium to raise the pH then these are exactly what you need, 

We stand behind our products. Every item comes with free shipping and 30 day returns.