It is hard to distinguish small fishes by gender. It is possible to make it only visually, but, and in this case, the result can be doubtful. Much more simply at once upon purchase to ask the seller. But even the person selling fishes himself not always knows who a male and who a female. Try to make the comparative analysis of individuals on their appearance.
Instruction
1. To define by the size a sex of a small fish rather difficult. Females not always more small than males. During preparation for spawning at females the increase in the sizes of a paunch when at males everything remains still is observed.
2. It is worth paying attention to their coloring. Males have bright color, females on the contrary, have ordinary-looking appearance more often.
3. Fins and a tail at males are, usually, longer, than at females. Bright, saturated color. Changes in coloring of fins during spawning are sometimes noticeable. At this time they become even brighter, additional pigmentation appears. Plavnikovy coloring of females remains invariable.
4. If you cannot to distinguish male from a female, but see visual difference of their building, then, most likely, you have heterosexual small fishes and, perhaps, the posterity will appear in the nearest future. If there are no distinctions, then address to pet-shop. Consult with the expert and buy one more small fish.