Wels, also known as Silurus glanis, is a freshwater fish species that belongs to the family of catfish. It is commonly found in European waters, particularly in the Danube and Rhine rivers. The Wels catfish is a popular game fish that can grow up to 5 meters in length and weigh up to 300kg. There are several synonyms for the word "Wels," such as sheatfish, European catfish, or simply catfish. These terms are often used interchangeably, but the Wels catfish is the most commonly used term. Whether you call it Wels or catfish, there's no denying the excitement and challenge of landing one of these monsters.