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Astraea spp.

Astraea (Astrea) Snail

Beginner Friendly
Peaceful
−10% Special Offer
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Live arrival guaranteed. If they don’t arrive healthy, email us a short unboxing video the same day for a replacement or refund. Packed in oxygenated bags with insulation and heat packs when needed.
£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.
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Astraea (Astrea) Snail is a reef-safe marine algae grazer for mature saltwater aquariums, rockwork, glass and clean-up crew support.

Care at a Glance

Scientific Name
Astraea spp.
Max Adult Size
up to 3 cm
Lifespan
3 years
Care Level
Easy
Temperament
Peaceful
Temperature
22–26°C
pH Range
8.1–8.4
Minimum Tank
60L
Diet
Herbivorous algae grazer; feeds on film algae, diatoms, fine hair algae and biofilm

Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.

Water Parameters

Maintain these water conditions for optimal health and vibrant colors

Temperature
22–26°C
22°CIdeal26°C
pH Level
8.1–8.4
8.1Ideal8.4

Quick Facts

  • Scientific name: Astraea spp.
  • Common names: Astraea snail, Astrea snail, star snail
  • Best for: mature reef and marine clean-up crews
  • Adult size: about 2.5-3 cm
  • Temperature: 22-26C
  • pH: 8.1-8.4
  • Minimum aquarium: 60 litres

Care Notes

Astraea snails graze film algae, diatoms and fine hair algae from rockwork and glass. They suit stable saltwater aquariums with mature surfaces to browse and should be acclimated slowly like other marine invertebrates.

Place the snail carefully onto rock or glass after acclimation. Astraea snails can struggle to right themselves if they fall upside down, so check them after introduction and gently turn them upright if needed.

Arrival and Guarantee

This is a living marine invertebrate. We dispatch suitable livestock with a licensed live-animal courier when conditions are safe, and the Live Arrival Guarantee applies when the arrival guidance is followed.

Customer Reviews

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What customers say about ordering from us

  • 5 out of 5Verified buyer

    Easy website plenty of info on fish your buying great to pick a time slot

    TRACEY DURRANT · 7 Oct 2026

  • 4 out of 5Verified buyer

    Got some lovely fish thank you

    Kevin Mackie · 7 Oct 2026

Reviews of our shop, collected by Judge.me, an independent third-party review collector. Newest first.

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