the guys have the male parts and the females have the female parts did you go to grade 4 health?
Well, they don't
The males have a red tail.
they females are brighter and the males are paler
if female beta fish are put together they would start to fight like the males.
Female fish will have a v shape in there tail fin more than the males.
It depends on the species. There are at least three different species commonly called 'Gourami'. In the case of Colisia sp. and Helostoma sp. the male is much more colourfull than the female. In Trichogaster sp. the main difference is in the fins. The males have much longer flowing fins than the female.
NBo not unless you have two males and one pregnant female
In some species this does happen.
in male fighter fish there is very deep colour and in female there is very fead colour female have a egg sack but males dont have
Yes, some fish even have standards. In Bettas, Males are deemed attractive by how well built their bubble nest is. Yet in live bearer society, males chase females either until the female wants to mate, or until the female gets tired, than mate with them.
Some fish can be viewed to be determined, as in color variations and/or body differences. In most viewable differences with color, the males are more often than not the more colorful of the two sexes. Males also tend to be bigger in most fish (one exception comes to mind are guppies). In some fish the tail fins are different between the sexes such as with guppies and betta fish where the males have long tails while the females have short tails. And then anal fins are key factors with sexing some fish. They are the rear most fins of a fish located near the base of the tail. With one sex being more pointed than the other. Yet another way is to Vent a fish. this is done by physically removing a fish and holding it in your hands and turning it upside down to view the vents. In some fish the females have bigger vents than males, and in some fish they can have a different color or even a different shape. It all comes down to what particular fish it is that needs to be sexed.
Female danios are much chubbier and slightly larger than the males when fully grown.