Texas Holey Rock World Famous Texas Holey Rock is a beautiful Limestone which is essential in all African Cichlid and Marine Tanks. As a Calcium Carbonate based rock it will help buffer your tanks PH levels as required. Fish love the smooth surface and caves or the rock which create a stunning natural habitat essential for there well-being. Looks great in a Terrariums, Gardens and Floral Displays in home decor.
