Many of us employ the services of Flying foxes, Epalzeorhynchos kalopterus or Siamese algae eaters, Crossocheilus sp. to help with a bit of algae control but if you’re lucky and have a closer look in your dealer’s tanks you might spot the rather lovely Silver flying fox. Like so many silver fish, they can be a little grey in the shop tanks, but settled into suitable quarters they are beautiful silver scaled fish, marked with a network of black highlighting the edges of each scale. A bold red eye and black spot on the caudal peduncle completes their livery. Keep them in groups of six or more to see their interesting hierarchical squabbles without the risk of it spilling over into bullying.
The flying fox fish has a characteristic long body with a flat abdominal area. Its dorsal area has a coloration ranging from olive to dark brown. The lower half of its body has a yellowish white hue. A brownish-black line is apparent from its mouth, eye and the caudal fins. On top of this brownish-black line is a gold-colored stripe. The eyes of a flying fox may have a reddish iris. Its dorsal, anal and ventral finnage consisting of a black band and a white edge.Although known to grow up to 6 inches (15.24 cm), flying foxes have an average length of 4.7 inches (11.94 cm) in an aquarium setting.
The flying fox is a bottom-dweller that thrives in fast-flowing foothill rivers and streams of the Thai-Malay Peninsula, Borneo, Java and Sumatra in Southeast Asia.[