Goldfishes are subspecies of silver crucians. Despite the name, these small fishes can differ in a coloring. Quite often in the nature red, white, black individuals meet. Besides, goldfishes are capable to change color during life. Generally change happens in the first year of life, however in certain cases small fishes can change a shade of scales and after puberty. On average, goldfishes are ready to spawn by 7-8 months, however it is better if they begin to breed after they were 2-4 years old. During this period they reach the maximum brightness of coloring of scales and fins. Till this time to understand what floor your goldfish, it is extremely problematic.
It is required to you
- To understand what floor your pet, it is necessary to look narrowly attentively at it during spawning. If in an aquarium there live two heterosexual small fishes, then you will be able to define at once which of them a male and who - a female.
Instruction
1. For a start compare the sizes of small fishes. Males usually there are slightly less females. At the same time the last have more roundish stomach. Also males have a little convex anus, at females, on the contrary, in this area it is possible to notice the hollow.
2. Some days before spawning on gills the males have white specks. On the first beams of chest fins it is also possible to notice small light jags which some manufacturers call ""saw"".
3. During spawning the males become extremely active. They begin to drive the self-check on an aquarium and also ""to stick"" to brides, clamping them in a corner.