Crossocheilus oblongus, commonly known as the Siamese Algae Eater, is a freshwater fish valued for its algae-eating abilities and peaceful nature.
Overview
Crossocheilus oblongus, commonly known as the Siamese Algae Eater, is a freshwater fish native to the rivers and streams of Southeast Asia. This species typically reaches a size of 10-15 cm and has a lifespan of 5 to 7 years.
Siamese Algae Eaters are well-regarded for their effective algae-eating habits, making them popular in community aquariums. Their peaceful demeanor allows them to coexist harmoniously with a variety of tankmates.
Tank Requirements
Crossocheilus oblongus thrive in slightly acidic to neutral water with a pH range of 6.5 to 7.5 and a general hardness (GH) between 5-15 dGH. The ideal temperature for their habitat is between 24-28°C, and they should be housed in a tank with a minimum volume of 150 liters.
A well-planted aquarium with ample swimming space is essential for these fish. They appreciate areas with moderate water flow and hiding spots among plants and decorations.
Feeding and Diet
In the wild, Crossocheilus oblongus are primarily herbivorous and feed on algae, plant matter, and detritus. In captivity, they readily accept high-quality flakes, pellets, and blanched vegetables like zucchini or spinach.
To maintain their health, it's important to provide a varied diet that includes both algae-based and vegetable-based foods. Feeding should occur once or twice daily, ensuring they consume their meals within a few minutes.
Care and Maintenance
Siamese Algae Eaters are relatively easy to care for, but maintaining good water quality is crucial. Regular water changes of 20-30% each week are recommended to keep the environment clean. A reliable filtration system helps keep the water well-oxygenated.
These fish can be somewhat territorial as they mature, so providing plenty of hiding spots and space can help reduce aggression.
Compatibility
Crossocheilus oblongus are best kept with other peaceful fish that share similar water parameters. Suitable tankmates include tetras, barbs, and other small community fish. Avoid keeping them with overly aggressive species, as this may lead to stress.
Their algae-eating abilities make them a beneficial addition to a community tank, helping to control algae growth while contributing to the overall ecosystem.
Breeding
Breeding Crossocheilus oblongus in captivity can be challenging. They are egg scatterers, and a separate breeding tank with suitable spawning sites is recommended.
The eggs are adhesive and will stick to surfaces after spawning. Once the fry are free-swimming, they should be fed infusoria or finely crushed flakes until they are large enough to consume standard flake foods.