Large Texas Holey Rock tiered so if your aquarium has

so if your aquarium has a healthy amount of substrate

It is inert and can be used in all aquatic environments with all aquatic pets and does not contain any chemicals or dyes

making it ideal for a fish tank that requires a higher pH level

Safe Swim-Thru Tunnels: Provides vital territorial boundaries and stress-reducing hides for active or breeding fish

Large Texas Holey Rock tiered so if your aquarium hasA large Texas Holey Rock for African Cichlid, or any fish that prefers rocks with holes. It is 16" high x 13" wide. The weight is right at 40 pounds. It has large holes on all sides. Because it has a high calcium content, this rock will provide nutrients that make fish healthy.