A bunch of algae

A bait made out of green algae is long-known among anglers. Usually this bait is used for fishing roach. Filamentous algae occur in most water bodies with weak or moderate currents. It is recommended to harvest algae right before fishing. Harvested algae is stored in the water, bound together in bunches. Using it as bait, you may catch roach that are used to feeding on algae in natural conditions. Beside large roach, algae is often favored by ide and chub.