Common name: Branching anemone

General information

The Hell's Fire Anemone, scientifically known as Actinodendron glomeratum, is a striking species of sea anemone that is both admired and feared by aquarists due to its potent sting. It belongs to the order Actiniaria and is known for its unique appearance, resembling a tree with many branches tipped with venomous nematocysts. These anemones are often a deep green to brown color, with fluorescent tips that can vary in hue.

Care

Hell's Fire Anemones require a well-established aquarium with stable water conditions. They prefer a sandy substrate and need ample space to expand without touching other sessile invertebrates or corals, as they can cause harm with their sting. Moderate to strong lighting and water flow are beneficial, but care should be taken to ensure that the flow is not so strong as to cause the anemone to become dislodged. They are carnivorous and thrive on a diet of meaty foods such as fish, shrimp, and other prepared foods suitable for carnivores.

Reproduction

In the wild, Actinodendron glomeratum can reproduce both sexually and asexually. In the aquarium, they may occasionally divide, leading to asexual reproduction. Sexual reproduction in captivity is rare and not well documented for this species.

Symbiosis

Unlike many other anemones, Hell's Fire Anemones do not typically host clownfish or other symbiotic partners. Their aggressive stinging cells make them less suitable for such relationships. However, they may occasionally be found with certain types of commensal shrimp that can tolerate their sting.

Habitat

Hell's Fire Anemones are found in the Indo-Pacific region, often in shallow waters with sandy or rubble substrates. They can be found at various depths, typically hiding during the day and extending their tentacles at night to feed.