Common name: pale anemone

General information

Aiptasia pallida, commonly known as the Glass Anemone or Pale Anemone, is a species of nuisance anemone that is often found in saltwater aquariums. They are known for their ability to reproduce quickly and can become a pest due to their invasive nature. Despite this, they are an interesting species to study due to their resilience and adaptability.

Care

Aiptasia pallida can be difficult to eradicate once established in an aquarium. They can reproduce both sexually and asexually, and even small fragments can regenerate into a new anemone. Various methods are used to control their population, including manual removal, chemical treatments, and biological controls such as introducing predator species like the Peppermint Shrimp (@species:lysmata-wurdemanni) or Copperband Butterflyfish (@species:chelmon-rostratus).

Reproduction

Aiptasia pallida reproduces both sexually, by releasing gametes into the water column, and asexually through pedal laceration, where small pieces of the base detach and grow into new anemones. This ability to rapidly reproduce makes them a formidable pest in reef aquariums.

Symbiosis

While Aiptasia pallida is not sought after for symbiotic relationships in the same way as more desirable anemones, they do host a variety of symbiotic zooxanthellae which provide them with nutrients through photosynthesis. They may also occasionally host small crustaceans or fish seeking refuge, although this is not common in aquarium settings.

Habitat

Aiptasia pallida is found in shallow tropical and subtropical waters around the world. They often settle on hard substrates, including live rock and coral rubble, which makes them easily introduced into aquariums through live rock or coral purchases.