When they have reached full maturity, the easiest way to tell the difference between the males and the females is that the males will be brighter in color, and the females typically have a wider girth.
Feeder fish, How do you tell male from female of the?
No difference
You can tell a male angel fish from a female one by all the colorful stripes it has. [the male one]
in a male parrot, the color on the bridge of the nose is darker and in females they have a lighter color.
by looking at the parrot fish?
their bellies
By performing an experiment
The male is larger and has much larger fins and much showier, brighter colours than the female who is quite a drab little fish.
you can tell if one of the female fish has a puffy stomach a female has a big shape of a V and a male has a smaller one.
While the fish is swimming, look at the fin on the top of their body. If it's tall then it's male if it is short , it's a female.
The female parrot is called a hen. This is the general name that is used for all birds where male is the cock and the female a hen.
The male of the species has brighter colours and is a much larger fish than the female