Underwater Galleries Shell Rock is the perfect small aquarium ornament for the shell lover. It was created from making a mold from a real shell after mounting it on a small rock - in a perfect tilted position to alway be able to see your fish as they swim in and out of his new home! Great for every small fish that wants a cave: cichlids, loaches, cat fish, bettas, white clouds, etc.
 
The opening is 1 and 3/4 inches tall and opens to the inside of the shell in a way that a real shell cannot giving it an extra advantage. Made of sustainable eco-friendly ceramic. Total height of the Shell Rock is 3.5 inches.