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I have just brought 5 minnows to put it my fish tank but i cant tell which is a boy or girl can some2007-11-24 23:35:31

Is it a boy or a girl

Answers:

You need to look at the dorsal fin.

Usually you can tell, as the dorsal fin, this is the fin on the underside of the fish will be different bettween the genders. the very back fin on the males will be much thinner and as a much lesser angle.

You cant tell on goldfish etc because their fins are completely different.

However, on a different note, it does not really matter which minnows are male and female, unless i spose you want to call one minnie and one mickey!!

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you might be a redneck if

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I got 2 goldfish and i asked if you can tell whether it is a boy or girl and they said no you can't but that could be only on goldfish but i advise you to go to a pet shop and ask them

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~~~our pet store sells these flat magnifying screens that you can put infront of your fishtank,,,that may help you to indentify male or female better,,,,,,really works great,,,,we have sold many fish this way by being able to breed and seperate after spawning so the males dont eat the babies,,,,

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usually minnows are gray if they're a girl for a boy they're just a different color

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AHHH you should of ask them before you put them into your tank. Now they will forget poor fish

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Are you wanting to know how do they reproduce? Spawning season as an example for the fathead minnow starts in late May to early June when water temperature exceeds 16掳 C (about 60掳 F). It goes into mid-August when the water temperatures begin to cool. About 30 days before a male begins to spawn, he develops dark coloration, breeding tubercles (which resembles little horns) on his head, and a soft mucus-like pad on his back between his head and dorsal fin (which by the way is on the top of him - not the bottom of him as someone else out here said - the bottom fin is the Anal fin).