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# Midline ridge: Males develop a ridge on their undersides that starts in back of their pelvic fins and ends at their vent opening. The ridge is absent or much smaller on females. (N.B. I have observed females with impressive ridges. Hmmm) # Firmness of Abdomen: For my heavy-bodied goldfish, the area between pelvic fins and the anal fins is fairly pliable on the females. For the males, this area is usually very firm. # Vent shape: According to several books, you can sex goldfish based on vent shape. I haven't been able to figure this out yet, so I won't confuse with an attempt at explaining what I have read. However, another hobbyist, Red Arthur, has used it and he supplied the following sketch to illustrate the method. The sketch also shows the location of the breeding tubercles on the males. Thank you, Red!
# Pectoral fin shapes: For short-finned varieties, males have longer, more pointed pectorals with a stiffer leading ray. Females have more rounded pectorals and shorter, finer front fin rays. For long-finned breeds, the fin shape is hard to judge. But the first ray length and thickness should still be somewhat different. This works pretty well. # Other features: Some other characteristics that I think would be very hard for beginners to make use of: males are alledgedly brighter colored, more active, and have longer fins. # Using a known female: Al Foster suggested introducing a fish known to be a female into a tank of goldfish of unknown sex. He says that the males will all "check out" the new female, while the females will show no interest.
The males develop white spots on their gill plates the female get chubby around the tummy in breeding season.
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How can you tell the sex of a goldfish?
in the spring the female will poof up after they get about 3 years of age
What color do females goldfish look like?
It depends on what kind of goldfish; normally, you just have to wait to see who lays the eggs to find out the sex of your fish.
How can you tell the sex of a goldfish it has blank lining around the fins?
The male will be less colorful than the primate
How can you tell what sex your tropical goldfish is?
To the best of my knowledge there is no such thing as a 'Tropical Goldfish' Goldfish (Carassius auratus) are coldwater fish. They can only be sexed when in breeding condition when only the males develop white spots on their gill plates.
How can you tell on a goldfish?
Before I tell on a goldfish, I try to work the problem out with the goldfish. If I cannot work out the problem, I generally tell the goldfish's Mother or Father in person.
How do you tell the sex of a Shubunkin fish?
Goldfish are pretty hard to sex unless you're very good at it such as a breeder, but in shubunkins, typically the female will be plumper than the male
How can you tell which goldfish you have?
If you mean like what breed of goldfish you have then that should be fairly easy. I determined what kind I had by looking at his markings and going on wikipedia. If you go to Wikipedia.com and type goldfish in your search bar then scroll down there will be pictures of goldfish with the breed next to them. It is fairly easy and that's how I found out what my goldfish were.
How do you tell a male goldfish from a male goldfish?
There is no difference
What kind of animal is a goldfish?
A goldfish is a type of fish.
Do girl goldfish have the eggs before or after sex?
after
How can you tell when your goldfish is crying?
Humans cry. Goldfish do not have the capability to do so.
How do you tell between female or male goldfish?
Female goldfish are usually bigger than male goldfish.
