They spend the majority of their time scraping algae from the rocks in both the aquarium as well as in the wild.

These operate like 'rakes', scraping algae and gathering the resultant detritus.

Some use it to scrape algae off rocks, while others are carnivorous, catching tiny zooplankton and other small animals that live in shallow water.

The species feeds by scraping epilithic algae using their radula.

They scrape algae from rocks, turn over stones for aquatic insects, and suck up decaying plant material.

The radula is used to scrape microscopic algae off the substratum.

This means they have an exceptionally abrasive tongue with which to scrape algae from rocks.

Some use it to scrape algae from the rocks.

They also use their highly specialized teeth to scrape algae off of rocks.

The chisel lip is used to scrape algae, a major food source, off submerged rocks.