Common name: Feather Star Squat Lobsters
The genus Allogalathea includes small, colorful crustaceans commonly known as Feather Star Squat Lobsters. These fascinating creatures are symbiotic with crinoids, or feather stars, which are marine animals related to sea stars and sea urchins. Allogalathea species are often found clinging to the arms of feather stars, where they find protection and access to food particles captured by their host. Their striking coloration often matches or complements the feather star they inhabit, making them a visually stunning addition to any aquarium that can support their unique needs.
Caring for Allogalathea species in a home aquarium requires careful attention to their symbiotic relationship with feather stars. Feather stars are delicate and challenging to keep, as they require pristine water quality and a steady supply of planktonic food. Without a healthy feather star host, these squat lobsters will not thrive. Additionally, they are small and peaceful, making them unsuitable for tanks with aggressive or predatory tankmates. They are best kept in specialized reef tanks with other non-aggressive invertebrates and small fish.
From a scientific perspective, Allogalathea species are an excellent example of commensalism in marine ecosystems. They benefit from the protection and feeding opportunities provided by their feather star hosts, while the feather stars are neither harmed nor helped by their presence. This relationship highlights the intricate interdependencies found in coral reef environments. Hobbyists interested in keeping Allogalathea should be prepared for the challenge of maintaining their host species and should research the specific requirements of both the squat lobster and the feather star to ensure a successful and ethical aquarium setup.
