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Astraea Snail Nuisance Algae Eater

Astraea Snail Nuisance Algae Eater

Astrea Snail is a common saltwater aquarium snail available these days. Sometimes hobbyists do not even have to buy them because they can accidentally make their way into tanks attached to live rocks or corals. In any case, these snails can be a great addition to community tanks. Why?

First of all, Astrea Snail care is relatively easy, making it a good snail for beginners. Second, these snails are well known for their hardiness and love for algae.

Below you will find all the information you need to know on how to care for Astrea snails, what to feed them and how to make a healthy snail home. Let’s get started.

Quick Notes about Astrea snail

NameAstrea snail

Other Names

Topshell snail, Trochus shell, Star snail, Conehead snail

Scientific NameLithopoma tectum (Synonymised names: Astraea tecta, Trochus tectus)

Tank size (minimum)5 gallons (~20 liters)



Size (carapace)up to 6 cm (~2.4 inches)

Optimal Temperature22 – 24°C (~71°F – 75°F)

Water typeSG = 1.021 – 1.026

Optimal PH8.1 – 8.4

Optimal KH7 – 12

NitrateLess than 20 ppm



Life spanup to 5 years

Color FormReddish-orange to creamy-white coloration

Taxonomy problem of Astrea snail

Astrea snail, commonly known as ‘Astraea tecta’, ‘Top shell’ or ‘Trochus shell’, is a member of the family Trochidae, a large family of marine gastropod molluscs containing several hundred species.

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    Our Return Policy

    The Small Print

    If a product arrives damaged, or is incorrect to what was ordered, the customer can contact us for a replacement provided the following conditions:

    Proof of Purchase
    Product has its original packaging 
    Product is unused
    We are contacted within 24 hours of product delivered/picked up
    Shipping costs are non-refundable.

    DOAS, or Dead on Arrival

    Here at Aquaculture Laboratories we provide our customers with the best quality livestock possible by using a ttm method and monitoring our live stock arrivals before selling.

    We monitor our fish throughout the quarantine facility and check them individually before selling to ensure our customers are happy with their purchase.

    For shipping customers, we will replace any fish or coral that are dead on arrival, provided there are photos and we are contacted within 6 hours of the livestock arriving. Photos must be of the coral or fish before bag is opened, and also after bag is opened. Photos must be sent via email to:

    For local customers: should any fish die or become sick, we request to be contacted within 24 hours of purchase and are provided with.

     A water sample to check parameters
    A photo of the dead fish
    Photo and details for your tank including size and tankmates
    Acclimatisation method used
    Shipping costs are non-refundable.

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