Castle Decor for Aquarium

A castle type decor for the aquarium with lots of holes so large fish have someplace to hide without actually being where you can't see them. Made for big fish, so it is about 4" x 9" x 6". Large pass-throughs are made to accommodate a large Jack Dempsey, while the smaller holes are so they can't pass through. Haven't actually printed it, but I will when I have time and update the instructions.