Common name: An Chasfheamainn

General information

Spiral Wrack, scientifically known as Fucus spiralis, is a brown alga commonly found in the intertidal zones of rocky shores. It is easily recognizable by its spiral, twisted fronds and small air bladders that help it float. This species is an important part of the marine ecosystem, providing habitat and food for various marine organisms.

Care

In the aquarium, Spiral Wrack requires moderate care. It thrives in tanks with strong water movement and good lighting to simulate its natural intertidal environment. It can be attached to rocks or other substrates to prevent it from being tossed around by the water flow. Regular water changes and nutrient control are essential to prevent excessive algae growth that could outcompete the Spiral Wrack.

Symbiosis

While not hosting organisms like anemones or corals, Spiral Wrack can be part of a diverse community in the aquarium. It provides shelter and food for small invertebrates and can be a grazing site for herbivorous fish. Its presence can enhance the biodiversity and stability of the tank ecosystem.

Habitat

Spiral Wrack is native to the Atlantic coasts of Europe and North America. It is typically found in the upper intertidal zone where it is exposed to the air during low tides. This exposure to varying conditions has made it a hardy species, capable of withstanding changes in salinity and temperature.