Siamese Algae Eater (Crossocheilus siamensis)

The Siamese Algae Eater, scientifically known as Crossocheilus siamensis, is a slender and energetic freshwater species native to river systems in Thailand and nearby regions of Southeast Asia. In the wild it inhabits flowing waters with stones, roots, and submerged wood where it grazes continuously along surfaces in search of soft algae and biofilm. This natural behavior makes it one of the most effective algae eating fish in the aquarium trade. Its streamlined body, transparent fins, and active movement give it a clean and understated beauty. Its temperament is calm and its social nature is well suited to community aquaria that offer open swimming space, stable warm water, and ample surfaces for grazing.

For aquarists who value both function and aesthetics, Crossocheilus siamensis delivers reliable performance without compromising on visual interest. It is well known for its ability to control a wide range of algae types. It thrives in planted tanks where bright lighting can cause rapid algae growth, and it contributes to ecological balance by consuming leftovers that might otherwise degrade water quality. The species adapts readily to prepared foods and remains active throughout the day, often in small interactive groups. Its peaceful nature allows it to coexist with other community fish, and its constant foraging brings a sense of movement and purpose to the aquarium. Maintaining clean warm water with steady oxygenation supports long term vitality. The species grows to a manageable size and remains sturdy and adaptable when provided with stable conditions.

From a retail perspective, the Siamese Algae Eater is a dependable choice for customers seeking an effective algae control solution that also adds character to the tank. Its mix of utility, hardiness, and lively behavior makes it a consistent favorite among both new and experienced hobbyists. The species responds quickly to good care, shows lasting value in planted or high light aquaria, and rarely troubles tankmates. These fish ship individually bagged, one fish per bag.

Common Name:  Siamese Algae Eater
Scientific Name:  Crossocheilus siamensis
Country of Import:  Czech Republic
Prophylactic Treatment:  Erythromycin / Ich-X / Metro
Approximate Current Size:  2.5″ each
Temp/pH/TDS:  75F / 6.5 pH / 80

Please be aware that all fish are sold on a BUY THIS WEEK, SHIP NEXT WEEK basis, and fish are shipped only on Monday, Tuesday and Wednesday. Weekly shipping cutoff is EVERY SATURDAY at 12 Noon Pacific US Time. All fish are shipped via Overnight Air/Next Day Air. Minimum order is $50.00 (excluding shipping) and all orders to the lower 48 US States qualify for FLAT RATE $60.00 shipping via Overnight Air/Next Day Air. Hawaii and Alaska State Residents: Please contact us if you would like to purchase Live Animals for delivery.

When you place your order, you will be required to agree to our Terms & Conditions of Sale.