Male or female? (guppies) - The Planted Tank Forum
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post #1 of 10 (permalink) Old 02-17-2020, 11:11 AM Thread Starter
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Male or female? (guppies)

Only the small middle one, big one is a male...
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Last edited by Desperado070; 02-17-2020 at 03:45 PM. Reason: big one is a male...
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post #2 of 10 (permalink) Old 02-17-2020, 12:31 PM
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It's hard to tell from the pictures. In livebearers the males have a modified fin underneath called a gonadopodium which they use to transfer sperm into the female. Compare your fish and see if any have different fins the gonadopodium is a long stiffened fin. Females don't have them.

Female guppies are usually bigger than males so the big one is probably not male if that helps. As these are young fish you need to use cues like these to sex them.
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post #3 of 10 (permalink) Old 02-17-2020, 02:27 PM
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They look mostly like females to me. Males stay smaller and the gonadapodium is like a stick shaped fin under their bellies. Females have a triangle fin in the same spot, and usually have more rounded bellies, less color, and are bigger.

It's not a mystery...snails are the BEST!
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post #4 of 10 (permalink) Old 02-17-2020, 02:42 PM Thread Starter
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Quote:
Originally Posted by Muscleguy View Post
It's hard to tell from the pictures. In livebearers the males have a modified fin underneath called a gonadopodium which they use to transfer sperm into the female. Compare your fish and see if any have different fins the gonadopodium is a long stiffened fin. Females don't have them.

Female guppies are usually bigger than males so the big one is probably not male if that helps. As these are young fish you need to use cues like these to sex them.
In the first picture are 3 generation, the bigger one, the in between ones (which are all males) and the fry.
Actually he or she is exactly the same size as the other ones from that gen except that she/he never shows her under fin and it kinda looks like a ...
I thought I even saw him flirting with me other adult females hence why he is in the male only tank now.
But yes, it is very hard to tel hence why i'm here.

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They look mostly like females to me. Males stay smaller and the gonadapodium is like a stick shaped fin under their bellies. Females have a triangle fin in the same spot, and usually have more rounded bellies, less color, and are bigger.
Males also have their chest more sticking out right after feeding instead of just having a bigger entire body by the females.
That is why I'm still in doubt about the little one (with the arrow) it looks like a male if you look at the belly, and also smaller than the other females of that generation.

The males didn't help either, they just wanna ride everything I throw in there... *sigh*

Last edited by Desperado070; 02-18-2020 at 08:56 AM. Reason: spelling...
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post #5 of 10 (permalink) Old 02-18-2020, 02:17 PM
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Well, if it's a female, you'll notice it being chased incessantly -- or hiding as much as possible pretty soon. I would just sit back far enough that they aren't altering their behavior because they see me nearby, and then...just watch.

It's not a mystery...snails are the BEST!
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post #6 of 10 (permalink) Old 02-19-2020, 10:33 PM
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You are allowed to net it and look at it its underside more closely you know. You can keep the net part submerged though it will come to no harm for as long as it takes to look.
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post #7 of 10 (permalink) Old 02-19-2020, 10:46 PM
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Not often that you see a livebearer photo and can't determine the gender! As much as the profile fits that of a female I think that fish *may* turn out to be a male. I don't see any gravid spot and the body is long. Ventral fin also seems to be long-ish and caudal fin is less rounded than the others around him/her. If there is a gravid (dark) spot there that doesn't show in the photo, disregard all of that because it's a girl. In another couple of weeks it should be apparent either way, it's getting pretty big and close to maturity. Hope you'll let us know.
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post #8 of 10 (permalink) Old 02-20-2020, 06:06 PM Thread Starter
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Quote:
Originally Posted by Blue Ridge Reef View Post
Not often that you see a livebearer photo and can't determine the gender! As much as the profile fits that of a female I think that fish *may* turn out to be a male. I don't see any gravid spot and the body is long. Ventral fin also seems to be long-ish and caudal fin is less rounded than the others around him/her. If there is a gravid (dark) spot there that doesn't show in the photo, disregard all of that because it's a girl. In another couple of weeks it should be apparent either way, it's getting pretty big and close to maturity. Hope you'll let us know.
I will
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All you need are guppies, and snails...
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post #9 of 10 (permalink) Old 02-26-2020, 08:47 AM Thread Starter
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Turned out to be a male
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All you need are guppies, and snails...
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post #10 of 10 (permalink) Old 03-23-2020, 04:47 PM Thread Starter
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update
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All you need are guppies, and snails...
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