Certain fish like ghost knife fish, catfish, elephant nose fish and baby whale fish use radar or sonar to navigate. A busy aquarium can make that navigation system a bit crazy, which is why Lee’s Ghost House from Big Al’s Pets would make a great addition to your aquarium. Lee’s Ghost House is a clear cylinder that measure 10" x 2". It anchors to the aquarium gravel via two legs. Once inside the ghost house, their radar informs them that they are now hidden from the other inhabitants of the tank, allowing them to experience maximum visibility. With Lee’s Ghost House, you can help make your aquarium a hospitable environment for all of your fish.