By fantails, do you mean goldfish? This links has photos of the two most reliable methods to use, the breeding tubercles on the gills and fins of a breeding condition male, and the vent openings of a male and female: http://www.bristol-aquarists.org.uk/goldfish/info/sexing-fs.htm
These will only be obvious if your fish are 1 1/2 to 2 years old and in spawning condition. Otherwise, the sexes will look to much alike for any method to be more than a guess.
During spawning, you'll often see a male chasing other ifsh around with his nose bumping them - it's a good indication of the "chaser" being a male, but if a female isn't present, he might chase other males this way.
2007-05-18 18:41:42
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answer #1
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answered by copperhead 7
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Fantail Goldfish Male Or Female
2016-11-16 20:04:39
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answer #2
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answered by norville 4
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This Site Might Help You.
RE:
how can you tell a female Fantail fish from a male Fantail Fish ??
can you show me a picture of a male Fantail and a female Fantail
so i can get a bit more of an idea thanx
2015-08-07 23:32:08
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answer #3
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answered by Anonymous
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Honestly, it's nigh on impossible to tell the sex of goldfish. The only surefire way to tell is during spawning season when the female looks fatter when looking down on her and she's filled with eggs. Since they don't normally spawn in aquariums, it isn't much of an issue. Also, goldfish aren't like gouramis or bettas where 2 males shouldn't be kept together. Most goldfish actually appreciate having a tankmate to swim with.
2007-05-18 18:47:05
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answer #4
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answered by Barb R 5
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Here are some clues that might help you sort out the Male fantail Goldfish from the female fantail Goldfish:
* The female Goldfish are slightly bigger than the males and look even heavier in the abdomen when they are full of eggs.
* Male Goldfish develop white spots on their gills and pectoral called "breeding tubercles" during spawning time.
* Males have midline ridges on their undersides beginning from the back of their pelvic fins and ending at their vent opening. This feature can be absent or smaller in females.
* Males have firm abdomen while in females; the area between the pelvic fins and the anal fins is more pliable.
* Male Goldfish have longer and pointed pectorals as well as stiff fin ray, while females have more rounded pectorals and shorter, finer front fin rays.
* Male goldfish have smaller and more oval anal openings and the anal fins are not as thick as that of the female goldfish who has a larger and rounder anal opening with a slight protrude. The anal fin is also thicker.
* The spawning time is the easiest time to distinguish the boys from the girls. The female opening will look larger and more swollen as the eggs begin to ripen. She would look big and heavier. Since fish reproduce through external fertilization, you can make out when a male is ready by the white breeding tubercles and you can actually push out the milt through his ventral opening by running a gentle finger along his sides.
* There is one more obvious, but kind of time taking way to make out which one of your fish is male and female. Find out who is chasing who - the chaser will be the male and the chased and tired out one will be the female! It's the natural tendency on part of the male goldfish to chase and nudge at a female's rear part.
Here is some more info for you with pictures:
http://www.bristol-aquarists.org.uk/goldfish/fantail/fantail.htm
http://petcaretips.net/sexing-goldfish.html
2007-05-19 04:42:57
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answer #5
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answered by Anonymous
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it's hard but most female fish have a bigger stomach and the males just have slim body. When a fish is young there is no way you can find out until it's an adult so just wait and see.
2016-03-17 07:53:54
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answer #6
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answered by Anonymous
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