,As the name suggests, this rock has a nice big tunnel that goes all the way through the rock in a bendy kind of way. (Very nice) There are holes of all sizes all over it and a lot of hiding places on it. This rock will not disappoint even the pickiest person, I'm sure. Measurements: 13" x 12" x 12" Weight 30 lbs.
Texas Holey Rock is made up of calcium, which is necessary for fish to live, When you put Holey Rocks in your tank, you are providing a constant supply of calcium for your aquatic pets.
