The Carpet anemone is named for its large size which resembles a carpet. The short tentacles have the appearance of the “pile” of a carpet, and have powerful stinging nematocysts. Many Carpet anemones serve as symbiotic hosts to clownfish who can hide within the anemone without being stung. Some Carpet anemones can grow to more than three feet in diameter.
The Magnificent sea anemone, also call the Radianthus or Ritteri anemone for its previous name Radianthus ritteri, is one of the largest and most beautiful of the sea anemones and is a popular host for many species of clownfish. It can reach a size of about three feet in diameter. It is found in coral reefs in the Indo-Pacific region from the Red Sea to Samoa. Although popular in the aquarium hobby, it has very specialized lighting and flow requirements and is known to move throughout the aquarium looking for its particular niche.