Golden Shark Medium Leptobarbus hoevenii This is also known as Red-Finned Cigar Shark, River Barb, or Sultan Fish. It's not actually a shark. It has a long body, that is very carp-like. It's a beautiful golden color, and will reach a length of around 50 cm. They like to swim in groups, and should be given plenty of swimming room. Also, keep plenty of structure for hiding, because they can be very timid in the tank. They are bottom dwellers and have an omnivorous diet. Keep the diet with a balanced diet of flake/pellet and live food.