I have 4 Rosy Barbs. When I bought them I wanted two males and two females. All four are the same shade of red/orange. Only difference is two of them have black dorsal and anal fins and the other two have only black dorsal fins. Which two are male and which two female?
Different Note: Every once in a while the head area of the Rosy Barbs and my Ruby Barbs turn red. Does this mean they are in breeding condition?