Common name: Large tube anemone

General information

The Tube Anemone, Cerianthus filiformis, is a striking marine invertebrate that is not a true anemone but belongs to the order Ceriantharia. Unlike true anemones, which are part of the Hexacorallia, tube anemones belong to a separate subclass of Anthozoa. They are known for their long, slender tentacles and the tube-like structure they create in the substrate to dwell in.

Care

Tube Anemones require a well-established aquarium with a deep sand bed or fine substrate in which they can anchor their tube. They prefer moderate to low flow and lighting conditions. Feeding should consist of meaty foods like mysis shrimp, brine shrimp, and finely chopped seafood. It's important to ensure that food reaches the tentacles directly.

Reproduction

Reproduction in Cerianthus filiformis can occur both sexually and asexually. In the aquarium, asexual reproduction is more common, where the anemone can split or bud off a new individual from its base. Sexual reproduction involves the release of gametes into the water column, but this is less frequently observed in captivity.

Habitat

Tube Anemones are found in a variety of marine environments, often in sandy or muddy substrates where they can bury their tubes. They are widespread in tropical and temperate seas. In the aquarium, they require a stable environment with consistent water quality to thrive.