Siamese Algae Eater (Crossocheilus siamensis) SAE 4-6cm

Description

Siamese Algae Eater (Crossocheilus siamensis)

Widely regarded as one of the best algae-eating fish for freshwater aquariums, the Siamese Algae Eater is an active, peaceful and hardworking species that helps manage a variety of nuisance algae. Combined with its friendly nature and constant activity, it's a favourite among planted aquarium enthusiasts.

Quick Facts

  • Scientific name: Crossocheilus siamensis
  • Common name: Siamese Algae Eater, SAE
  • Current size: Please refer to the selected size option
  • Adult size: Approximately 14–16 cm
  • Tank size: 120L+ recommended
  • Difficulty: 🟢 Easy
  • Temperament: Peaceful and active
  • Social needs: Best kept singly or in groups of 4 or more in larger aquariums

Is this for you?

✔️ Perfect if:

  • You have a planted aquarium with occasional algae issues.
  • You want an active, peaceful community fish.
  • You appreciate fish that are constantly on the move.
  • You have a medium to large aquarium with plenty of swimming space.

❌ Avoid if:

  • You expect a fish to eliminate all algae problems.
  • You have a very small aquarium.
  • You keep slow-moving fish that may be intimidated by active swimmers.
  • You plan to rely solely on natural algae growth for feeding.

Why choose a Siamese Algae Eater?

The Siamese Algae Eater has earned its reputation as one of the hobby's most effective algae-grazing fish. Unlike many species sold as "algae eaters", true Crossocheilus siamensis readily consume a variety of algae, including soft green algae, hair algae and even black beard algae (BBA), particularly when young.

Beyond their usefulness, they are lively and entertaining fish that spend the day exploring every corner of the aquarium. Their streamlined body and bold black lateral stripe make them an attractive addition to planted aquariums and peaceful community tanks.

As they mature, they become more omnivorous and should be offered a varied diet rather than relying solely on algae growth. Well-fed Siamese Algae Eaters remain active, healthy and display their best natural behaviour.

Benefits

  • One of the best freshwater algae-grazing fish
  • May assist with hair algae and black beard algae in suitable conditions
  • Peaceful community species
  • Safe with most aquarium plants
  • Constantly active and entertaining
  • Hardy and adaptable

Care made simple

  • Temperature: 23–28°C
  • pH: 6.5–7.8
  • Diet: Algae, quality sinking pellets, algae wafers, spirulina foods, fresh vegetables and frozen foods
  • Water: Clean, stable and well-filtered
  • Substrate: Sand or fine gravel with driftwood and rocks
  • Setup: Plenty of swimming space with planted areas and shaded retreats
  • Supplement their diet regularly, especially as they mature and natural algae becomes less appealing.
  • Maintain good aquarium husbandry, as algae control is always most effective when combined with proper lighting, fertilisation and maintenance.

Pairs perfectly with

  • Corydoras
  • Rainbowfish
  • Rasboras
  • Peaceful Gouramis
  • Amano Shrimp
NTA Insight:
The Siamese Algae Eater is one of the few fish that can genuinely assist with several common algae types, including black beard algae when conditions are right. However, no fish should be viewed as a complete solution to algae problems. Healthy plant growth, balanced lighting, appropriate nutrient levels and regular maintenance remain the foundation of a clean aquarium. Think of the Siamese Algae Eater as a valuable member of your maintenance team—not the entire team.

FAQ

How large do Siamese Algae Eaters grow?

Adults typically reach 14–16 cm and appreciate aquariums with plenty of open swimming space.

Do they really eat black beard algae?

True Crossocheilus siamensis are one of the few freshwater fish known to graze on black beard algae, particularly when they are young. Results vary depending on the aquarium and available food sources.

Can they live in planted aquariums?

Yes. They are plant-safe and are among the most popular algae-grazing fish for planted aquariums.

Are they aggressive?

No. They are generally peaceful, although adults may occasionally establish a loose pecking order when kept together.

What should I feed them?

Offer a varied diet including algae wafers, spirulina foods, sinking pellets, fresh vegetables and occasional frozen foods. They should not rely solely on natural algae.

Can they live with shrimp?

Yes. Adult freshwater shrimp are generally ignored, making Siamese Algae Eaters suitable for many larger shrimp-friendly community aquariums.

Are Siamese Algae Eaters suitable for beginners?

Absolutely. Their hardy nature, peaceful temperament and simple care requirements make them an excellent choice for beginner and experienced aquarists alike.

How long do Siamese Algae Eaters live?

With good care, they commonly live for 8–10 years and remain active throughout their lives.

Siamese Algae Eater (Crossocheilus siamensis) SAE 4-6cm

Product form

SKU: SAE

Out of stock,  

$15.00


All prices include GST
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    Description

    Siamese Algae Eater (Crossocheilus siamensis)

    Widely regarded as one of the best algae-eating fish for freshwater aquariums, the Siamese Algae Eater is an active, peaceful and hardworking species that helps manage a variety of nuisance algae. Combined with its friendly nature and constant activity, it's a favourite among planted aquarium enthusiasts.

    Quick Facts

    • Scientific name: Crossocheilus siamensis
    • Common name: Siamese Algae Eater, SAE
    • Current size: Please refer to the selected size option
    • Adult size: Approximately 14–16 cm
    • Tank size: 120L+ recommended
    • Difficulty: 🟢 Easy
    • Temperament: Peaceful and active
    • Social needs: Best kept singly or in groups of 4 or more in larger aquariums

    Is this for you?

    ✔️ Perfect if:

    • You have a planted aquarium with occasional algae issues.
    • You want an active, peaceful community fish.
    • You appreciate fish that are constantly on the move.
    • You have a medium to large aquarium with plenty of swimming space.

    ❌ Avoid if:

    • You expect a fish to eliminate all algae problems.
    • You have a very small aquarium.
    • You keep slow-moving fish that may be intimidated by active swimmers.
    • You plan to rely solely on natural algae growth for feeding.

    Why choose a Siamese Algae Eater?

    The Siamese Algae Eater has earned its reputation as one of the hobby's most effective algae-grazing fish. Unlike many species sold as "algae eaters", true Crossocheilus siamensis readily consume a variety of algae, including soft green algae, hair algae and even black beard algae (BBA), particularly when young.

    Beyond their usefulness, they are lively and entertaining fish that spend the day exploring every corner of the aquarium. Their streamlined body and bold black lateral stripe make them an attractive addition to planted aquariums and peaceful community tanks.

    As they mature, they become more omnivorous and should be offered a varied diet rather than relying solely on algae growth. Well-fed Siamese Algae Eaters remain active, healthy and display their best natural behaviour.

    Benefits

    • One of the best freshwater algae-grazing fish
    • May assist with hair algae and black beard algae in suitable conditions
    • Peaceful community species
    • Safe with most aquarium plants
    • Constantly active and entertaining
    • Hardy and adaptable

    Care made simple

    • Temperature: 23–28°C
    • pH: 6.5–7.8
    • Diet: Algae, quality sinking pellets, algae wafers, spirulina foods, fresh vegetables and frozen foods
    • Water: Clean, stable and well-filtered
    • Substrate: Sand or fine gravel with driftwood and rocks
    • Setup: Plenty of swimming space with planted areas and shaded retreats
    • Supplement their diet regularly, especially as they mature and natural algae becomes less appealing.
    • Maintain good aquarium husbandry, as algae control is always most effective when combined with proper lighting, fertilisation and maintenance.

    Pairs perfectly with

    • Corydoras
    • Rainbowfish
    • Rasboras
    • Peaceful Gouramis
    • Amano Shrimp
    NTA Insight:
    The Siamese Algae Eater is one of the few fish that can genuinely assist with several common algae types, including black beard algae when conditions are right. However, no fish should be viewed as a complete solution to algae problems. Healthy plant growth, balanced lighting, appropriate nutrient levels and regular maintenance remain the foundation of a clean aquarium. Think of the Siamese Algae Eater as a valuable member of your maintenance team—not the entire team.

    FAQ

    How large do Siamese Algae Eaters grow?

    Adults typically reach 14–16 cm and appreciate aquariums with plenty of open swimming space.

    Do they really eat black beard algae?

    True Crossocheilus siamensis are one of the few freshwater fish known to graze on black beard algae, particularly when they are young. Results vary depending on the aquarium and available food sources.

    Can they live in planted aquariums?

    Yes. They are plant-safe and are among the most popular algae-grazing fish for planted aquariums.

    Are they aggressive?

    No. They are generally peaceful, although adults may occasionally establish a loose pecking order when kept together.

    What should I feed them?

    Offer a varied diet including algae wafers, spirulina foods, sinking pellets, fresh vegetables and occasional frozen foods. They should not rely solely on natural algae.

    Can they live with shrimp?

    Yes. Adult freshwater shrimp are generally ignored, making Siamese Algae Eaters suitable for many larger shrimp-friendly community aquariums.

    Are Siamese Algae Eaters suitable for beginners?

    Absolutely. Their hardy nature, peaceful temperament and simple care requirements make them an excellent choice for beginner and experienced aquarists alike.

    How long do Siamese Algae Eaters live?

    With good care, they commonly live for 8–10 years and remain active throughout their lives.

    Live Arrival & Ordering FAQ

    Why do livestock prices sometimes change?

    Unlike manufactured products, fish and shrimp continue to grow and develop over time. Their value changes as they increase in size, develop colour, or become breeding pairs.

    Our prices are based on the current size, quality and availability of each specimen. While pricing often remains stable for around 3–4 months, it may be updated at any time to reflect these changes.

    We always aim to offer healthy, high-quality livestock at fair and competitive prices.

    Do you offer a live arrival guarantee?

    Yes. All livestock is covered by our Live Arrival Guarantee.

    In the rare event of DOA, please contact us promptly with clear photos of the livestock in the original unopened bag.

    Please review our full DOA and store policies before purchase.

    Can you ship to all states in Australia?

    No. Due to state restrictions, we cannot ship livestock or live plants to WA and TAS.

    What should I check before ordering?

    Before placing an order, make sure:

    • Your tank is fully cycled and stable
    • Your aquarium has enough space for the species
    • Your current livestock are compatible in temperament, size, and requirements
    • Your water parameters, habitat, and temperature suit the species
    • You are not adding too many fish at once
    What should I expect when my fish arrives?

    It is normal for fish, shrimp, or snails to look pale, stressed, or less active after shipping.

    This is temporary. Most livestock will settle and regain colour within a few days.

    How long does it take for fish to settle in?

    Most livestock will take 3–7 days to fully adjust to their new environment.

    Should I feed my fish immediately after arrival?

    No. We recommend waiting 24 hours before feeding to allow them to settle.

    If you already have fish in your tank, feeding them before introducing new arrivals can help reduce stress.

    Why do fish sometimes struggle after being added to a tank?

    In most cases, issues are caused by tank conditions, not shipping.

    • Uncycled or unstable tanks
    • Poor water parameters
    • Overstocking
    • Unsuitable tank mates
    What is Nano Tanks Australia’s main tip for new livestock?

    Most livestock losses happen in immature or unstable tanks, not during shipping.

    If your setup is not fully established, the risk to new arrivals is significantly higher.

    Not sure if this fish is right for your setup?

    If you are unsure whether this species suits your setup, contact us before ordering and we’ll help point you in the right direction.

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