Adding Them to Small Aquariums

Many aquariums do not contain enough sand bed area or natural food sources to support a Sand Sifting Starfish long term.

Assuming They Eat Leftover Fish Food

Most Sand Sifting Starfish rely on live organisms within the substrate rather than prepared aquarium foods.

Overstocking the Sand Bed

A single starfish can quickly deplete beneficial microfauna populations in smaller aquariums, eventually leading to starvation.

What does a Sand Sifting Starfish eat in a reef aquarium?

Sand Sifting Starfish primarily feed on worms, copepods, amphipods, tiny crustaceans, molluscs, detritus, and other microscopic organisms living within the sand bed. They do not survive solely by eating waste or leftover fish food.

Why do Sand Sifting Starfish often starve in captivity?

Many reef aquariums simply do not contain enough live food within the substrate to support them long term. Once the sand bed's microfauna population is depleted, the starfish may slowly starve despite appearing healthy initially.

How old should a reef tank be before adding a Sand Sifting Starfish?

Most experienced aquarists recommend waiting at least 12 months before adding a Sand Sifting Starfish. Mature sand beds contain significantly more microfauna and natural food sources than newly established systems.

Are Trochus Snails good for beginners?

Absolutely. They are hardy, effective algae grazers, and easy to care for in most reef systems.

Why can't I find my Sand Sifting Starfish?

This is completely normal. Sand Sifting Starfish spend much of their lives buried beneath the substrate searching for food and may disappear for days or even weeks before reappearing.

Is the Sand Sifting Starfish reef safe with corals and fish?

Yes. Sand Sifting Starfish do not consume SPS corals, LPS corals, soft corals, zoanthids, anemones, or fish. They are considered reef safe, although they may reduce populations of beneficial sand-dwelling organisms over time.

Save $10 Sold out

Aquamarine Aquaristic

Sand Sifting Starfish (Astropecten polyacanthus)

Name: Sand Sifting Starfish (Astropecten polyacanthus)
Brand: Aquamarine Aquaristic
SKU: 45858012758262
Price: 15.0 AUD
Availability: OutOfStock

$15.00 ~~$25.00~~ Save $10 each

Out of stock

Sand Sifting Starfish (Astropecten polycanthus) Description The Sand Sifting Starfish is a popular substrate-dwelling starfish prized for its ability to continuously turn over and clean marine aquarium sand beds. Spending...

Read full description →

Arrive Alive guarantee Replacement or store credit

Door-to-door delivery Australia-wide options

Secure checkout

Description

Sand Sifting Starfish (Astropecten polycanthus) Description

The Sand Sifting Starfish is a popular substrate-dwelling starfish prized for its ability to continuously turn over and clean marine aquarium sand beds. Spending most of its life beneath the substrate, this fascinating echinoderm helps aerate the sand while consuming detritus, organic matter, worms, microfauna, and other organisms living within the substrate. Its constant burrowing activity can contribute to a cleaner and healthier sand bed, making it a popular choice for larger reef aquariums. Due to its specialised feeding requirements, the Sand Sifting Starfish is best suited to mature aquariums with large, established sand beds.

Can Send to TAS?	YES
Can Send to WA?	NO

Husbandry

Care guide

Care difficulty

BeginnerModerateExpert

Beginner

Temperament

SkittishPeacefulSemi-agg.Aggressive

Peaceful

Maximum size 20cm

0 cm 15 cm 30 cm

Recommended Stocking

1 Star Per 2 Foot of aquarium

Reef safe

Yes

Diet

Carnivore & Microfauna Predator – Sand Sifting Starfish feed on worms, small crustaceans, microfauna, detritus, organic matter, molluscs, and other organisms living within the sand bed. They obtain most of their nutrition by hunting through the substrate and rarely accept prepared foods. Large, mature sand beds are essential to provide adequate long-term nutrition.

Avoid these pitfalls

Common mistakes to avoid

Learn from these common pitfalls when caring for marine livestock.

Many aquariums do not contain enough sand bed area or natural food sources to support a Sand Sifting Starfish long term.
Most Sand Sifting Starfish rely on live organisms within the substrate rather than prepared aquarium foods.
A single starfish can quickly deplete beneficial microfauna populations in smaller aquariums, eventually leading to starvation.

Help centre

Frequently asked questions

Find answers to common questions about our products and shipping.

Sand Sifting Starfish primarily feed on worms, copepods, amphipods, tiny crustaceans, molluscs, detritus, and other microscopic organisms living within the sand bed. They do not survive solely by eating waste or leftover fish food.
Many reef aquariums simply do not contain enough live food within the substrate to support them long term. Once the sand bed's microfauna population is depleted, the starfish may slowly starve despite appearing healthy initially.
Most experienced aquarists recommend waiting at least 12 months before adding a Sand Sifting Starfish. Mature sand beds contain significantly more microfauna and natural food sources than newly established systems.
Absolutely. They are hardy, effective algae grazers, and easy to care for in most reef systems.
This is completely normal. Sand Sifting Starfish spend much of their lives buried beneath the substrate searching for food and may disappear for days or even weeks before reappearing.
Yes. Sand Sifting Starfish do not consume SPS corals, LPS corals, soft corals, zoanthids, anemones, or fish. They are considered reef safe, although they may reduce populations of beneficial sand-dwelling organisms over time.