Banded Trochus Snails (Trochus sp.) are easily identified by their conical purple and white striped shells and are sought as members of Clean-Up Crews for their ability to right themselves if they fall or get flipped over. Looking at the snail from the bottom will reveal its foot surrounded by several small sensory tentacles and the thin operculum it uses to cover its shell opening when it is retracted in the shell. Trochus snails will spend time, working their way along the reefscape and glass helping to keep pesky algae under control. They will consume film algae, green algae, diatoms, cyanobacteria, and will occasionally, though not always, consume hair algae. A Trochus snail can grow up to 1 inch in size and should be able to access the tank’s algae without any issues. If they run out of algae to eat, be sure to supplement their diet with nori (seaweed) or a vegetable based food. While they can be bred in captivity, it is difficult to tell the males from the females. Wild caught Trochus snails are native to the Indo-Pacific region of the world. As with all invertebrates, they are sensitive to high nitrate levels and do not tolerate copper based medications. Make sure to slowly drip acclimate them before adding them to your tank.