Ophiaracna incrassata (Green brittle starfish)

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Ophiaracna incrassata, also known as the thick-armed brittle star, is a species of brittle star (Ophiuroidea) found in the oceans. Here is a description and care information for this species:

Description of Ophiaracna incrassata:

  • Appearance: The thick-armed brittle star has thin and long arms that are covered in dense, hair-like projections. It can come in various colors such as brown, red, or purple, and the projections on its arms give it a distinctive appearance.

  • Size: The size of this species can vary, but it often reaches an arm length of several to a few dozen centimeters.

  • Behavior: Thick-armed brittle stars are sedentary organisms and spend most of their time on the seabed or attached to substrates. They are predators and use the projections on their arms to capture tiny planktonic organisms.

Care for Ophiaracna incrassata in marine aquariums:

  • Aquarium: An aquarium for thick-armed brittle stars should provide suitable conditions for attachment to substrates. These brittle stars need access to a substrate they can grip onto, such as placing rocks or coral fragments on the aquarium bottom.

  • Water Parameters: Maintaining stable water parameters is crucial. Water temperature should be around 24-28°C (75-82°F), and salinity levels should be between 1.023 and 1.025. Good water filtration and regular water changes are also important.

  • Feeding: Thick-armed brittle stars are predators that feed on planktonic organisms. In the aquarium, you can feed them various sources of planktonic food, such as frozen marine fish foods or specialized plankton filter-feeding preparations.

  • Compatibility with Other Organisms: Thick-armed brittle stars are generally peaceful organisms and do not exhibit aggressive behavior towards other aquarium inhabitants.

  • Handling: Brittle stars are delicate creatures, so care should be taken when performing maintenance in the aquarium to avoid damaging their arms or bodies.

Caring for thick-armed brittle stars in marine aquariums is possible but requires the right conditions for attachment and access to planktonic food. Maintaining proper water parameters is also essential.