Many colors. I had two male goldfish. One was white and the other one was red.
The difference between a male goldfish and a female is that the female is usually bigger and in spring and the male gains a white pimple type substance on it's gill flap also the female is more of a gold color and the the male is a silver color.
There is no difference
you look are the goldfish tal and the female has a bigger V than the male
Some goldfish are male, while others are female.
Female goldfish are usually bigger than male goldfish.
Usually a female goldfish mates with a male goldfish!
goldfish start out with female and then turn into male!!!!!!
Fancy goldfish can be male or female.
No, only black goldfish are black.
Well yes you need a male goldfish and a female goldfish to have babies but it takes allot of time to breed them.
You should not put a male betta with goldfish's.They are aggressive and will fight with goldfish's goldfish give off ammonia and will kill the Betta's.
Different types of goldfish food typically don't affect the colour of goldfish, however there are some specific goldfish foods that may enhance the color of goldfish- but do not change its overall color.