The Saddled Hillstream Loach, also known as Beaufortia kweichowensis, is a freshwater species that originates from the fast-moving streams and rivers in China. They are named for their body shape which is flattened and streamlined to help them cling onto rocks in fast flowing waters. These fish have a unique appearance with a mottled brown and black coloration with a distinctive saddle-shaped marking on their backs. They have a sucker mouth to hold onto rocks, making them excellent algae grazers for planted aquariums. In terms of behavior, this loach species is active and enjoys exploring their surroundings. They thrive in aquariums with high water flow and appreciate plenty of rocks and plants to provide hiding places and cover. For optimal health and longevity, it is recommended to maintain a temperature range of 72-78°F (22-25°C) and a pH range of 7.0-8.0. The Saddled Hillstream Loach prefers well-oxygenated water that mimics their natural fast-flowing stream habitat, so a good filtration system is necessary for their care. The Saddled Hillstream Loach is a hardy and easy to care for species, making it a great choice for beginner aquarists. They are also known for their ability to control algae growth in the aquarium due to their grazing habits, making them a popular choice for planted tanks. With their unique appearance and active nature, the Saddled Hillstream Loach is a great addition to any freshwater tank.