Starfish are marine invertebrates belonging to the class Asteroidea. They typically have five arms and a central disc and are known for their regenerative abilities.
Scientific Name
Class Asteroidea
Habitat
Found on the seabed of all the world's oceans, from tropical habitats to deep sea trenches.
Conservation
Not currently endangered, but some species are threatened by pollution, habitat destruction, and climate change.
Lifespan
Depends on the species; some can live up to 35 years.
Fun Fact
Starfish can regenerate lost arms, and in some species, an entire body can regrow from just one arm!
Diet
Carnivorous – they feed on mollusks like clams and oysters by everting their stomachs to digest prey externally.
Average Size
Typically range from 5 cm to over 40 cm across.
Location / Placement info
Displayed in the Coastal Reef Exhibit, near the Ocean-View Tunnel
FAQ
What is the lifespan of a Starfish?
Depending on the species, starfish can live up to 5–35 years.
What do Starfish eat?
They are mostly carnivorous, feeding on mollusks (like clams), snails, and sometimes algae or detritus.
Are Starfish aggressive?
No, starfish are non-aggressive, slow-moving bottom dwellers.
What is the ideal tank size?
A 50-gallon marine aquarium is minimum for small species; larger ones need much more space.
Do they need a specific environment?
Yes, they need stable saltwater conditions, low nitrates, live rock, and sandy substrate.
How big do Starfish grow?
Size varies widely: some grow to 4 inches (10 cm) while others reach over 24 inches (60 cm) in diameter.
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