Chinese Algae Eater

Description

Chinese Algae Eater (Gyrinocheilus aymonieri)

Hardy, active and an excellent algae grazer when young, the Chinese Algae Eater is a unique freshwater fish prized for its ability to clean surfaces while constantly exploring the aquarium. With its specialised sucker mouth and energetic personality, this fascinating species is best suited to larger aquariums with experienced fish keepers who understand its changing behaviour as it matures.

Quick Facts

  • Scientific name: Gyrinocheilus aymonieri
  • Common name: Chinese Algae Eater
  • Current size: Approximately 4–7 cm
  • Adult size: 20–28 cm
  • Tank size: 200L+ recommended for adults
  • Difficulty: 🟑 Moderate
  • Temperament: Semi-aggressive as adults
  • Best kept: Singly or with robust tank mates

Is this for you?

βœ”οΈ Perfect if:

  • You have a medium to large freshwater aquarium.
  • You want an active bottom-dwelling algae grazer.
  • You keep similarly sized community or semi-aggressive fish.
  • You understand their behaviour changes as they mature.

❌ Avoid if:

  • You expect them to remain small.
  • You keep slow-moving or long-finned fish.
  • You have a nano aquarium.
  • You want a peaceful algae eater for life.

Why choose the Chinese Algae Eater?

Juvenile Chinese Algae Eaters are excellent grazers that spend much of their day cleaning algae and biofilm from rocks, glass and driftwood. Their specialised sucker mouth allows them to cling to smooth surfaces while feeding, making them fascinating to watch.

As they mature, however, their diet naturally shifts away from algae towards a more omnivorous lifestyle. Adult fish become more territorial and should be housed with appropriately sized tank mates in spacious aquariums.

Their unique appearance, energetic behaviour and hardiness have made them a long-standing favourite among freshwater aquarists, provided their adult care requirements are understood.

Benefits

  • Excellent algae grazer when young
  • Unique sucker-mouth feeding behaviour
  • Hardy and adaptable
  • Constantly active and entertaining
  • Suitable for larger freshwater aquariums
  • Long-lived with proper care

Care made simple

  • Temperature: 24–28Β°C
  • pH: 6.5–7.8
  • Diet: Algae wafers, spirulina, sinking pellets, vegetables and quality frozen foods
  • Water: Clean, well-filtered with good oxygenation
  • Substrate: Sand or smooth gravel
  • Setup: Driftwood, rocks, hiding places and open swimming areas
  • Supplement their diet as they mature, as algae alone is not sufficient.
  • Provide plenty of hiding places to reduce territorial behaviour.

Pairs perfectly with

  • Rainbowfish
  • Barbs
  • Larger Danios
  • Severums
  • Robust Plecos
NTA Insight:
Chinese Algae Eaters are often purchased as small algae-eating juveniles, but many aquarists are surprised by how large they become. As adults, they require a spacious aquarium and a varied diet. If you're looking for a lifelong peaceful algae grazer, species such as Otocinclus or Bristlenose Catfish are usually better choices. However, if you have the space and suitable tank mates, the Chinese Algae Eater is an active and rewarding fish with plenty of personality.

FAQ

Do Chinese Algae Eaters always eat algae?

No. Juveniles are effective algae grazers, but adults naturally become more omnivorous and require a varied diet that includes prepared foods and protein.

How big do they grow?

They commonly reach 20–28 cm as adults, making them unsuitable for small aquariums.

Are they peaceful?

Young fish are generally peaceful, but adults can become territorial, particularly towards other bottom-dwelling fish and slow-moving species.

Can they live with Angelfish or Discus?

It is generally not recommended. Mature Chinese Algae Eaters have been known to attach themselves to the bodies of slow-moving fish, potentially causing stress or injury.

What should I feed them?

A varied diet of algae wafers, spirulina foods, sinking pellets, blanched vegetables and occasional frozen foods will keep them healthy as they mature.

How long do they live?

With excellent care, Chinese Algae Eaters commonly live between 8 and 10 years.

Are they suitable for beginners?

They can be, provided new aquarists understand their eventual adult size and changing behaviour. Planning for their long-term needs is essential.

Chinese Algae Eater

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Out of stock,  

$15.00


All prices include GST
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    Description

    Chinese Algae Eater (Gyrinocheilus aymonieri)

    Hardy, active and an excellent algae grazer when young, the Chinese Algae Eater is a unique freshwater fish prized for its ability to clean surfaces while constantly exploring the aquarium. With its specialised sucker mouth and energetic personality, this fascinating species is best suited to larger aquariums with experienced fish keepers who understand its changing behaviour as it matures.

    Quick Facts

    • Scientific name: Gyrinocheilus aymonieri
    • Common name: Chinese Algae Eater
    • Current size: Approximately 4–7 cm
    • Adult size: 20–28 cm
    • Tank size: 200L+ recommended for adults
    • Difficulty: 🟑 Moderate
    • Temperament: Semi-aggressive as adults
    • Best kept: Singly or with robust tank mates

    Is this for you?

    βœ”οΈ Perfect if:

    • You have a medium to large freshwater aquarium.
    • You want an active bottom-dwelling algae grazer.
    • You keep similarly sized community or semi-aggressive fish.
    • You understand their behaviour changes as they mature.

    ❌ Avoid if:

    • You expect them to remain small.
    • You keep slow-moving or long-finned fish.
    • You have a nano aquarium.
    • You want a peaceful algae eater for life.

    Why choose the Chinese Algae Eater?

    Juvenile Chinese Algae Eaters are excellent grazers that spend much of their day cleaning algae and biofilm from rocks, glass and driftwood. Their specialised sucker mouth allows them to cling to smooth surfaces while feeding, making them fascinating to watch.

    As they mature, however, their diet naturally shifts away from algae towards a more omnivorous lifestyle. Adult fish become more territorial and should be housed with appropriately sized tank mates in spacious aquariums.

    Their unique appearance, energetic behaviour and hardiness have made them a long-standing favourite among freshwater aquarists, provided their adult care requirements are understood.

    Benefits

    • Excellent algae grazer when young
    • Unique sucker-mouth feeding behaviour
    • Hardy and adaptable
    • Constantly active and entertaining
    • Suitable for larger freshwater aquariums
    • Long-lived with proper care

    Care made simple

    • Temperature: 24–28Β°C
    • pH: 6.5–7.8
    • Diet: Algae wafers, spirulina, sinking pellets, vegetables and quality frozen foods
    • Water: Clean, well-filtered with good oxygenation
    • Substrate: Sand or smooth gravel
    • Setup: Driftwood, rocks, hiding places and open swimming areas
    • Supplement their diet as they mature, as algae alone is not sufficient.
    • Provide plenty of hiding places to reduce territorial behaviour.

    Pairs perfectly with

    • Rainbowfish
    • Barbs
    • Larger Danios
    • Severums
    • Robust Plecos
    NTA Insight:
    Chinese Algae Eaters are often purchased as small algae-eating juveniles, but many aquarists are surprised by how large they become. As adults, they require a spacious aquarium and a varied diet. If you're looking for a lifelong peaceful algae grazer, species such as Otocinclus or Bristlenose Catfish are usually better choices. However, if you have the space and suitable tank mates, the Chinese Algae Eater is an active and rewarding fish with plenty of personality.

    FAQ

    Do Chinese Algae Eaters always eat algae?

    No. Juveniles are effective algae grazers, but adults naturally become more omnivorous and require a varied diet that includes prepared foods and protein.

    How big do they grow?

    They commonly reach 20–28 cm as adults, making them unsuitable for small aquariums.

    Are they peaceful?

    Young fish are generally peaceful, but adults can become territorial, particularly towards other bottom-dwelling fish and slow-moving species.

    Can they live with Angelfish or Discus?

    It is generally not recommended. Mature Chinese Algae Eaters have been known to attach themselves to the bodies of slow-moving fish, potentially causing stress or injury.

    What should I feed them?

    A varied diet of algae wafers, spirulina foods, sinking pellets, blanched vegetables and occasional frozen foods will keep them healthy as they mature.

    How long do they live?

    With excellent care, Chinese Algae Eaters commonly live between 8 and 10 years.

    Are they suitable for beginners?

    They can be, provided new aquarists understand their eventual adult size and changing behaviour. Planning for their long-term needs is essential.

    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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