The Tinfoil Barb is a fish that is often available in pet shops and sold to the beginning aquarist but it is not the best choice for those just starting in the freshwater hobby. The tinfoil barb requires a very large tank, at least 75 gallons (284 liters) for one and a much larger aquarium when keeping these barbs in multiples because of their potential adult size of 13 inches (32 cm).
They like to have lots of space for swimming and they are indeed fast swimmers. They also like to jump out of tanks that don't have tight fitting hoods.
The sides of the Tin foil Barb resemble tin foil (hence the name) and the fins on the this barb will become more red as they mature. Juveniles (pictured below) lack the red on the fins. The second picture is of a mature tinfoil barb that is around 10 inches in size.
Tin foil Barbs will accept most fish foods, including flakes, pellets, frozen and freeze-dried foods. They will also go after you live plants and any smaller fish if given the opportunity.