usually depends on the type of fish.. some types could be distinguished by the length of fins or color...
2006-10-05 05:48:34
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answer #1
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answered by jack jack 7
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Each species has different characteristics. Some have the same.
Some of the time the male will be the more colorful. It just depends on the fish.
2006-10-05 12:53:06
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answer #2
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answered by Special Ed 5
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Females Goldfishes are bigger than males of the same age.
When they reach spawning age, and the eggs begin to mature in the female fish, she will thicken in the ventral area
At the same time, the male will start to develop small white tubercles on his gill plates and on the leading rays of his fins, particularly on the first ray of the pectoral fin which can usually be detected on fish with head growth.
Then there is the anal opening. go to the website below to see pics and more details
2006-10-05 12:59:18
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answer #3
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answered by Anonymous
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Fish can usually be identified in much the same way as birds. As a rule, the males are usually brighter in color than thier female counterparts.
2006-10-05 12:52:17
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answer #4
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answered by nitro 1
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Usually the colors or in some fish the shape of their fins.
2006-10-05 12:47:36
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answer #5
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answered by debra_har 4
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It depends on the species of fish.
2006-10-05 12:53:03
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answer #6
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answered by shermynewstart 7
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The boy fish is the one with the jacked up truck....
2006-10-05 12:50:22
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answer #7
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answered by eastern_mountain_outdoors 4
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Not, with certain fish you can tell by how long the fin is
2006-10-05 12:47:42
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answer #8
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answered by Anonymous
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Differs from species to species.
2006-10-05 13:00:27
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answer #9
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answered by Ättitude is Ëverything 3
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Their eyes if their eyes are more to the side they are girls if they are more to the bottom then they are boys.Hope I helped!
2006-10-05 12:52:10
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answer #10
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answered by Anonymous
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