Common name: Beadlet anemone
General information
The Beadlet Anemone, Actinia equina, is a common sea anemone found along the rocky shores of the Atlantic Ocean and the Mediterranean Sea. This species is known for its robust nature and ability to tolerate a range of environmental conditions, making it a suitable candidate for the marine aquarium hobby. The Beadlet Anemone is characterized by its bright red to dark green coloration and distinctive blue beads, or acrorhagi, around its mouth, which are used in defense and territorial disputes.
Details
- Recommended minimum tank volume
- 40 liter (11 gallons)
- Salinity
- S.G. 1.023 to 1.026
- Temperature
- 16 to 26 °C (61 to 79 °F)
- Acidity
- pH 7.8 to 8.4
- Average size
- 10 cm (4″)
- Care level
- Moderate to easy
- Diet
- Carnivore
- Reefsafe
- Yes
- Aggression
- Semi aggresive May sting nearby corals
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumCnidariansCnidaria
- ClassAnthozoansAnthozoa
- OrderSea AnemonesActiniaria
- FamilySea AnemonesActiniidae
- GenusBeadlet AnemoneActinia
- SpeciesBeadlet anemoneActinia equina (Linnaeus, 1758)
- SynonymsActinia cerasum Dalyell, 1848Actinia chiococca Cocks in Johnston, 1847Actinia corallina Risso, 1826Actinia equina mesembryanthemum Linn.Actinia equina chiococca Andr.Actinia hemisphaerica Pennant, 1777Actinia hemispherica Pennant, 1777Actinia margaritifera Templeton, 1836Actinia mesembryanthemum Ellis & Solander, 1786Actinia purpurea Cuvier, 1798Priapus equinus L.Priapus ruber Forsskål, 1775
Care
Beadlet Anemones are relatively easy to care for in captivity. They require a stable marine aquarium with moderate lighting and water movement. It's important to provide them with a rocky substrate or crevices where they can attach their base. They can feed on a variety of meaty foods such as chopped fish, mussels, or shrimp, and benefit from regular feedings.
Reproduction
In the wild, Actinia equina can reproduce both sexually and asexually. Sexual reproduction occurs through the release of gametes into the water column, while asexual reproduction happens through a process called pedal laceration, where new anemones form from pieces of the parent's pedal disc. In the aquarium, asexual reproduction is more commonly observed, leading to the proliferation of clones.
Symbiosis
While the Beadlet Anemone does not have a well-known symbiotic relationship with fish like clownfish, it can host a variety of small invertebrates and provide shelter to them. Its stinging cells offer protection to these creatures from potential predators.
Habitat
Actinia equina is typically found in intertidal zones, often in rock pools and on rocky substrates where it can withstand the changing tides. It is a hardy species that can cope with variations in temperature and salinity, which is reflected in its wide distribution along the coasts of Europe and parts of Africa.