
Illustrative images
Crossocheilus oblongus
The Siamese Algae Eater, scientifically known as Crossocheilus oblongus, is a freshwater fish native to Southeast Asia, particularly found in Thailand and Laos. Known for its algae-eating habits, this species is a favorite among aquarists looking to maintain a clean tank.
Siamese Algae Eaters are typically found in fast-flowing rivers and streams with plenty of rocks and vegetation. They thrive in a well-oxygenated environment and prefer shaded areas to retreat when needed.
Caring for Siamese Algae Eaters is relatively straightforward, making them suitable for both beginner and experienced aquarists.
When setting up a tank for Siamese Algae Eaters, consider incorporating plenty of hiding spots with rocks, driftwood, and live plants. A sand or gravel substrate is suitable, and good water flow can mimic their natural habitat. A well-maintained filter is crucial for keeping the tank clean and oxygenated.
These fish are generally peaceful and can be housed with a variety of other species. Ideal tank mates include:
Avoid housing them with overly aggressive or territorial species, as this could lead to stress and potential harm.
Siamese Algae Eaters primarily feed on algae, but they will readily accept a variety of foods. A balanced diet should include:
Ensure they receive enough plant matter in their diet, especially since they spend much of their time grazing on algae.
With proper care, Siamese Algae Eaters can live anywhere from 5 to 10 years in captivity.
Choose a tank of at least 40 gallons for a group of 5-6 Siamese Algae Eaters, ensuring ample swimming space.
Introduce the fish to the tank gradually to minimize stress and allow them to adjust to the new environment.
Keep the water temperature between 72-79°F (22-26°C) and the pH level between 6.5-7.5.
Feed them a mix of algae, algae wafers, and vegetables to ensure balanced nutrition.
Ensure compatibility with other species and observe for any signs of aggression or territorial behavior.
A minimum of 40 gallons is recommended for a group of 5-6 Siamese Algae Eaters; larger groups require 55+ gallons.
Maintain a water temperature between 72-79°F (22-26°C) and a pH level of 6.5-7.5.
With proper care, Siamese Algae Eaters can live 8-10 years.
They primarily consume algae, including black beard algae, and should be supplemented with algae wafers and vegetables when algae is scarce.
Yes, they are compatible with many community species that tolerate moderate flow, such as barbs, danios, peaceful cichlids, and larger tetras.