Remarks:Siamese algae eaters (Crossocheilus oblongus, formerly C. siamensis), commonly known as SAEs, are native to the freshwater rivers and streams of mainland Southeast Asia, including the Mekong and Chao Phraya river basins in Thailand, Laos, Cambodia, and Vietnam. In the wild, they inhabit flowing waters where they graze on algae growing on rocks, driftwood, and submerged vegetation. SAEs are often mistakenly sold or referred to as flying foxes, but the true flying fox (Epalzeorhynchos kalopterus) is a different species with distinct markings and behavior. While both species are algae grazers, the Siamese algae eater is widely regarded as the superior choice for controlling black beard algae. These active, generally peaceful fish become more energetic as they mature and may chase or harass smaller, more timid tank mates. For this reason, adult SAEs are best housed in aquariums of 40 gallons or larger, where they have plenty of swimming space. Their reputation as algae-control specialists is well deserved. They eagerly graze on black beard algae (BBA), one of the most stubborn nuisance algae found in freshwater aquariums. A small group can often clear a heavily infested aquarium within just a few weeks, making them one of the most effective natural solutions for controlling this common aquarium pest.
