Todd, you said that suckers are not even remotely a threat to salmonids….

From Alaska game and fish department:

Food habits: The longnose sucker feeds primarily on the bottom of streams or lakes. It swims slowly along the bottom in search of invertebrates, which include insects, mollusks, snails, and crustaceans, and sometimes eats aquatic plants, algae and fish eggs. Its large lips enable it to suck up its food. Suckers have been shown to compete with salmonids in lakes and ponds.
_________________________
Bless our troops.