Red Knob Sea Star

Echinaster Sea Stars are typically found on rocky substrates and sandy or muddy bottoms. They inhabit coastal areas, shallow waters, and sometimes intertidal zones. Echinaster Sea Stars are carnivorous and feed on a variety of small organisms like mollusks, crustaceans, and detritus. Echinaster sea stars are known for their ability to move quite swiftly compared to other sea star species. They use their tube feet to glide across the substrate or even climb vertical surfaces. It's essential to avoid using copper-based treatments in a tank with sea urchins, as it can harm them. Always follow the recommended guidelines for medication use in marine aquariums.

Echinaster echinophorus Sea Stars are also known simply as Red Knob Sea Stars or Velvet Sea Stars. Commonly seen in the aquarium trade. Their color can range from bright red to orange, and they often have a velvety appearance due to fine, soft spines covering their bodies. These sea stars can grow to a maximum size of approximately 12" in diameter. However, their size can vary based on environmental conditions.

Water conditions: Salinity 1.023 - 1.025 Temp (F) 72 - 78, pH 8.1 - 8.4, Hardness 8 - 12 dKH