Many have attributed stray voltage in the aquarium to many common fish diseases such as Lateral Line and Hole-in-the-head Diseases. Stray voltage comes from heaters, powerheads, pumps, lights and other electrical devices. This can now be completely eliminated by installing a grounding probe in each and every aquarium. We believe this is one of the best grounding probes with a 3-Prong plug and the regular lug. Made from a non-corrosive 'pure' solid titanium rod w/ a 10-foot wire lead. It also utilizes an insulated transition joint to insure corrosion protection and no leaching of metals into the aquarium. Simple immerse probe in water, and either plug into wall receptacle or grounding lug.