Hillstream loaches, also known as reticulated hillstream loaches, are small, flattened fish known for their unique appearance and algae-eating habits. They have a flattened body, large pectoral and pelvic fins, and a distinctive black and yellow spotted or striped pattern. These fish are peaceful, active, and thrive in well-oxygenated, fast-flowing water, often mimicking their natural habitat in streams and rivers