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Determining the gender of goldfish is a lot harder than people may suspect. During breeding season, the males will get what we call breeding stars on the cover of their gill plates; they look like tiny white bumps.
You might also be able to tell by their vents under their tail, but it takes a lot of practice and knowledge to easily tell them apart when it's not breeding season.
In addition, even if it is breeding season, and you have all males, or all females in your tank, it remains difficult to tell the difference as the males need a female in the tank, and vice-versa for the females so that they will show typical breeding behaviour.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoIf you are referring to the 'Fantail Goldfish' then the only way is to wait until it is mature and ready to breed. If it develops white spots on its gill plates during breeding season (spring) then it is a male. If on the other hand it develops a very chubby tummy almost as if it has rounded tubes on both sides leading down towards its vent then it is a female.
Wiki User
∙ 14y agoGoldfish can only be sexed during breeding season when they are ready to breed. The males develop small white spots/pimples on their gill plates and the females get a chubby tummy. In order to breed them you will need a large well planted aquarium (at least 6 foot) or a pond. You will also need a lot of tanks in which to rear the thousands of babies (fry) that one spawning will produce.
Wiki User
∙ 14y agoGoldfish can only be sexed at breeding time when the males develop white spots on their Gill plates and sometimes their Pectoral fins too. The females simply get chubbier as they fill with ova (eggs).
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How do you tell if a fantail goldfish is male?
it has a short tail
How do you tell between female or male goldfish?
Female goldfish are usually bigger than male goldfish.
How can you know whether the goldfish is pregnant?
Goldfish do not get pregnant, but rather they produce eggs. If there is no male around, most often the female will reabsorb the eggs and never actually release any.A female goldfish may get much rounder when full of eggs, but this can be difficult to tell if you have a Ryukin or a Fantail as their body shape is quite round.
Are goldfish male?
Some goldfish are male, while others are female.
How do you know if fantail goldfish is going to have babies?
You should see that the female goldfish appears fatter than usual due to the eggs she is carrying. The male will have white spots on his front fins and gill covers and will pay the female a lot of attention chasing her around the tank or pond.
My fantail Goldfish has been alone in good size tank now for one year I put a common Goldfish into the tank just yesterday and the fantail seems to be 'bullying' the common Goldfish What is happening?
The fantail goldfish is asserting it's dominance over the common goldfish. The fantail goldfish has already established in its mind that the whole tank is its territory and will fight any other fish that try to change that. This is normal when adding new fish to an established tank and they will usually continue to fight for a couple more days. During this time make sure to give the fish plenty of food to eat and some place for the common goldfish to hide. If they do not stop fighting after several days than I would recommend moving the common goldfish to its own separate tank of at least 20 gallons. Another reason (though not as likely) is that the common goldfish is a female and the fantail is a male. A male may chase a females rear- this is normal but if he harrasses her- remove her immediately.
Does a female goldfish have to have a male around to get pregnant?
Well yes you need a male goldfish and a female goldfish to have babies but it takes allot of time to breed them.
How can you tell if fantail pidgeon is male or female?
The Funtail female pigeon face and height is smaller than the male funtail pigeon.
How does a goldfish make a baby?
Usually a female goldfish mates with a male goldfish!
Are fancy goldfish girls?
Fancy goldfish can be male or female.
What do goldfish start out with?
goldfish start out with female and then turn into male!!!!!!
Is a goldfish female bigger than a male?
Female goldfish are slightly bigger than males
