Many hobbyists keep scavengers specifically to manage algae and leftovers in their tanks or ponds.
: Powerful scavengers suitable for large ponds; they consume organic waste and debris but may prey on smaller fish as they grow. Scavenger Fish Names
: Common additions to community tanks to help keep the bottom clean. Wild & Deep Sea Scavengers Many hobbyists keep scavengers specifically to manage algae
In the wild, scavengers are vital for clearing away carcasses and maintaining the "health" of the seafloor or riverbeds. Scavenger Fish Names