Crossocheilus oblongus
Siamese Algae Eater
The Siamese Algae Eater is one of the most effective algae eaters in the hobby. They are peaceful, active, and essential for controlling problematic algae growth in planted tanks.
Ensure perfect water for Siamese Algae Eater ➔
Perfect for Aquaware Monitoring
Note: Requires Stability
Avoid stress caused by fluctuating parameters. To boost the immune system, smart monitoring (e.g., with Aquaware) is the best path to long-term health.
Temperature
24 - 26 °C
75 - 79 °F
pH Value
6.5 - 7.5 pH
Acidity Level
Mineral Content (TDS)
100 - 300 ppm
✅ Ideal for Aquaware Sensor
Did you know?
They are one of the few fish that will reliably eat 'Black Beard Algae'.
Aquaware Pro Tip
Be careful not to confuse them with 'Flying Foxes' or 'Chinese Algae Eaters' which look similar but are more aggressive.
Natural Habitat
Fast-flowing rivers and streams in the Malay Peninsula.
Diet & Nutrition
Herbivore. Algae, biofilm, and sinking veggie wafers.
Behavior
Peaceful and active. Can be territorial with their own kind if the tank is too small.
Max Size
14-16 cm (5.5-6 inches)
Average adult size
Lifespan
10 years
Years with proper care
Swim Zone
Preferred tank region
Top
Mid
Bottom 🦞
Min. Tank
100 Liters
Recommended minimum size
Social
1 Fish
Solitary possible
Add. Space
25 L
Required per additional fish
(7 Gallons)
(7 Gallons)
💧 +25 Liters needed