Asterina Starfish
The Asterina starfish is a small, often gray or tan starfish found in marine aquariums and on live rock. It typically measures less than an inch across and has a variable number of arms, often appearing asymmetric. While some species are harmless detritivores, others may graze on coralline algae or soft corals. Their population can grow quickly under ideal conditions, making them controversial in reef tanks. They are often removed manually or controlled with natural predators like the Harlequin shrimp.
Aquarium Care Requirements:
Lighting
- There are no specific lighting requirements.
- Survives in low to high-lighting environments.
- It's not photosynthetic; lighting depends on the tank setup rather than the starfish.
Water Flow
- Low to moderate water flow is preferred.
- Asterina starfish move slowly and can struggle in strong currents.
- Ensure calm areas where they can settle on rock or glass.
Placement
- Commonly found on live rock, glass, or substrate.
- They will roam across all tank surfaces.
- No special placement needs, but monitor population growth.
Feeding
- Detritivore and opportunistic grazer.
-
Eats:
- Biofilm
- Algae
- Uneaten food
- Coralline algae (in some species)
- Usually, it doesn’t need direct feeding.
- Overfeeding the tank can cause population booms.
Aggression
-
Generally peaceful, but:
- Some species may irritate or damage soft corals or zoanthids.
- Not suitable for tanks with delicate corals if not identified.
- It can be considered a pest in reef tanks if uncontrolled.
FAQ Section
Q: What is the size and how many pieces are included in this product?
A: The product includes one bag, with 20 more starfish.