Which habitat feature is characteristic of where juvenile Wels catfish hold compared to mature specimens?

Areas with softer, silty bottoms where benthic invertebrates thrive

There is a notable separation in habitat preference based on age class. Mature Wels catfish, the giants, seek the deepest, most secluded spots for security and thermal regulation. In contrast, juvenile Wels catfish occupy different, shallower habitats. They favor areas where abundant, easy forage is available, specifically mentioning shallow margins, weedy areas, and locations with softer, silty bottoms where benthic invertebrates—a key food source for smaller fish—are plentiful. This strategic positioning maximizes feeding opportunities for the younger, rapidly growing specimens.