Siamese Sucking Loach – Gyrinocheilus aymonieri | Active algae eater for larger aquariums

The Siamese sucker loach ( Gyrinocheilus aymonieri ) is a popular and highly effective algae eater from Southeast Asia. With its characteristic sucker-like mouth and streamlined body shape, it is perfectly adapted to life in flowing waters. Its shimmering golden-brown to olive-colored body with a dark longitudinal stripe also makes it an attractive focal point in the aquarium.

This robust and active species reliably keeps the aquarium clean by removing algae from stones, roots, and glass. The Siamese algae eater feels particularly at home in well-filtered, oxygen-rich tanks with a current.

🌿 Characteristics & Attitude:
🐠 Fish size: M/L (5–6 cm)
🌎 Origin: Southeast Asia (Thailand, Cambodia, Laos)
🌡️ Temperature: 22-28°C
💧 pH value: 6.0–7.8
⚖️ Total hardness: up to 20 °dGH
🐟 Social behavior: Peaceful, sociable as a young animal – later territorial
🌾 Aquarium: From 200 liters, with current, roots, stones & hiding places

🍽️ Feeding:
The Siamese algae eater feeds primarily on algae and biofilm. In an aquarium, it also accepts spirulina, seaweed wafers, vegetable chips, cucumber, and fine frozen food. A varied, plant-rich diet ensures vibrant colors and vitality.

💡 Tip:
It is best to keep them in groups of young animals and ensure they have enough space. Large, fast-flowing aquariums with plenty of structure allow the animals to display their natural behavior most beautifully.

👉 Conclusion:
The Siamese sucking loach ( Gyrinocheilus aymonieri ) is an extremely useful, robust and attractive algae eater – ideal for large, well-filtered aquariums with a current.